World Yearlist Record Attempt (2 Viewers)

[Richard Klim]

But there are also 68 extant species recognised by eBird/Clements but not by IOC...
IOC (v5.4) and eBird/Clements (v2015) recognise 10,612 and 10,365 extant spp respectively. ...

OK. I reckon that there are 322 additional species under IOC Version 5.4 than eBird/Clements that are not classified as extinct or presumed extinct.

Paul, if there are 68 extant species unique to eBird/Clements, then there should be 10,612 – 10,365 + 68 = 315 extant species unique to IOC.

Perhaps the apparent inconsistency is the result of differences in the classification of certain species as extant/extinct...?

 

[Paul Chapman]

Paul, if there are 68 extant species unique to eBird/Clements, then there should be 10,612 – 10,365 + 68 = 315 extant species unique to IOC.

Perhaps the apparent inconsistency is the result of differences in the classification of certain species as extant/extinct...?

Richard

It is (I believe). I think the answer is that the eBird/Clements checklist takes a more liberal approach to species being extinct so the number of unique species to IOC increases. In any event, it is there or thereabouts and my main interest is getting an understanding on where it will put the record on an IOC basis to a reasonable level of accuracy in approximate terms.

(Feral populations after that....)

All the best

 

[Paul Chapman]

Paul, if there are 68 extant species unique to eBird/Clements, then there should be 10,612 – 10,365 + 68 = 315 extant species unique to IOC.

Still no IOC updated total here:-

https://www.audubon.org/news/the-final-species-list-taxonomic-order

By my reckoning, he recorded 203 Clements species where IOC split at least one of the subspecies as a full species. Some of these are wide-ranging and he will have seen the split eg Green-winged Teal and Cattle Egret. Some are very restricted and he will clearly not have seen the split. I'll see if there is much more that can be gleaned. I doubt it so I suspect it is a waiting game before seeing what Noah declares and what Arjan's target becomes.........

African Hill Babbler
African Stonechat
African Swift
Ashy Bulbul
Ashy Cuckooshrike
Australasian Pipit
Banded Prinia
Barn Owl
Barred Owl
Bar-throated Apalis
Bicolored Hawk
Black Kite
Black-and-rufous Warbling-Finch
Black-and-white Mannikin
Black-browed Albatross
Black-browed Tit
Black-capped Hemispingus
Black-eared Hemispingus
Black-faced Antthrush
Black-faced Dacnis
Black-faced Ibis
Black-headed Batis
Black-headed Paradise-Flycatcher
Black-necked Stilt
Blond-crested Woodpecker
Blue-black Grosbeak
Blue-crowned Motmot
Blue-throated Flycatcher
Blue-winged Parrotlet
Broad-billed Hummingbird
Broad-ringed White-eye
Bronzed Cowbird
Brush Cuckoo
Buff-breasted Paradise-Kingfisher
Buffy Tuftedcheek
Cabanis's Greenbul
Carmiol's Tanager
Cattle Egret
Channel-billed Toucan
Chapin's Flycatcher
Chestnut-throated Apalis
Chinese Babax
Collared Aracari
Comb Duck
Common Bulbul
Common Cicadabird
Cory's Shearwater
Crested Bobwhite
Crested Lark
Crimson-winged Finch
Crowned Chat-Tyrant
Eastern Double-collared Sunbird
Eastern Marsh-Harrier
Eastern Mountain-Greenbul
Emerald Dove
Emerald Toucanet
Eurasian Green Woodpecker
Eurasian Hoopoe
Eurasian Nuthatch
Fawn-breasted Waxbill
Firecrest
Fire-crested Alethe
Flame-rumped Tanager
Fox Sparrow
Golden Whistler
Golden-bellied Warbler
Golden-faced Tyrannulet
Golden-fronted Woodpecker
Golden-olive Woodpecker
Great Cormorant
Great Horned Owl
Green Jay
Green Parakeet
Green-backed Becard
Green-backed Camaroptera
Green-fronted Hummingbird
Green-winged Teal
Grey Parrot
Grey-breasted Partridge
Grey-headed Dove
Grey-necked Wood-Rail
Ground Parrot
Helmeted Friarbird
Hepatic Tanager
Herring Gull
Hook-billed Kite
Ivory-billed Aracari
Large Hawk-Cuckoo
Large-billed Crow
Lawes's Parotia
Lesser Blue-eared Starling
Lesser Short-toed Lark
Little Egret
Little Grebe
Little Rush-Warbler
Little Shearwater
Madagascar Green-Pigeon
Magnificent Hummingbird
Magnificent Riflebird
Mallard
Masked Yellowthroat
McConnell's Flycatcher
Mealy Parrot
Metallic Starling
Miombo Wren-Warbler
Mocking Cliff-Chat
Monk Parakeet
Mountain Cacique
Mountain Warbler
Mouse-colored Tyrannulet
New Zealand Robin
Northern Harrier
Northern Pygmy-Owl
Ocellated Woodcreeper
Orchard Oriole
Osprey
Pale-legged Hornero
Paltry Tyrannulet
Peruvian Tyrannulet
Plain-throated Sunbird
Prevost's Ground-Sparrow
Rainbow Lorikeet
Rainbow Lorikeet
Red-lored Parrot
Red-rumped Swallow
Red-tailed Wheatear
Ring-necked Pheasant
Rock Martin
Rock-loving Cisticola
Royal Albatross
Royal Flycatcher
Ruddy Duck
Rufous Fieldwren
Rufous Gnateater
Rufous-fronted Thornbird
Rufous-naped Wren
Russet-throated Puffbird
Sacred Ibis
Sandwich Tern
Scaled Piculet
Scaly Thrush
Scarlet-rumped Cacique
Sharp-shinned Hawk
Shelley's Greenbul
Short-tailed Batis
Siberian Stonechat
Sierran Elaenia
Slaty Thrush
Slaty-backed Chat-Tyrant
Slender-billed Crow
Souimanga Sunbird
Southern Boobook
Southern Grey Shrike
Speckle-faced Parrot
Spectacled Monarch
Spot-backed Puffbird
Stipple-throated Antwren
Streaky-headed Seedeater
Streamertail
Striated Heron
Stripe-cheeked Greenbul
Striped Manakin
Striped Wood-haunter
Sulawesi Blue-Flycatcher
Sulawesi Scops-Owl
Swee Waxbill
Tawny Grassbird
Tawny-throated Leaftosser
Thick-billed Flowerpecker
Three-striped Warbler
Torresian Imperial-Pigeon
Tricolored Brushfinch
Tropical Pewee
Two-banded Warbler
Variable Pitohui
Varied Sittella
Varied Tit
Vermiculated Screech-Owl
Virginia Rail
Wailing Cisticola
Wandering Albatross
Wedge-tailed Sabrewing
Western Scrub-Jay
White Eared-Pheasant
White-bellied Minivet
White-browed Coucal
White-crested Elaenia
White-crowned Forktail
White-flanked Antwren
White-fringed Antwren
White-rumped Shama
White-throated Mountain-gem
White-throated Thrush
White-winged Scoter
Winding Cisticola
Yellow Warbler
Yellowbill
Yellow-breasted Brushfinch
Yellow-breasted Flycatcher
Yellow-margined Flycatcher
Yellow-nosed Albatross
Yellow-rumped Warbler
Yellow-streaked Greenbul

All the best

 

[Pedro Ramalho]

A good analysis using R: http://strimas.com/r/big-year/

 

[Paul Chapman]

A good analysis using R: http://strimas.com/r/big-year/

Pedro

Absolutely fantastic - thanks for the link.

"Since I only have data on number of new species seen each day, all these continent and country level patterns are confounded by the order in which countries are visited. Obviously the distribution of many birds spans country and continental lines. So, for example, since Noah visited Ecuador after neighbouring Peru, many of the birds he saw in Ecuador would already have been seen in Peru."

What is interesting is when you overlay the percentages of additions for birds seen in the different countries. I have some of that data at home which can be extracted from eBird. It is what reinforces the 'jab and move' element to building the list.

All the best

 

[Nohatch]

Fantastic, many thanks Pedro! (I need to learn how to use R someday....)

 

[temmie]

A good analysis using R: http://strimas.com/r/big-year/

from the analysis:
"And, no surprise about the country where Noah saw the most birds... Peru!"

This is actually no surprise, but the same could be said if Noah saw most birds in Ecuador or Colombia. The most important factor was his big day in Northern Peru, and the fact that he did Peru first (before Ecuador and Colombia).
The very fact that Peru and Ecuador share a lot of birds, doesn't necessarily imply that those species are as easy to see in one country as in the other; Nor does this imply that birders visit the same habitats in both countries (as seen from Noah's travel schedule, and will be seen from Arjan's)

from the analysis:
"This is extremely impressive, Noah has managed to maintain a nearly linear increase in species sightings over the course of the year. A typical species accumulation curve shows a pattern of saturation; there is an effect of diminishing returns as more time is spent searching. Of course, here he's managed to mostly avoid this by constantly changing locations to encounter new species pools."

So it wasn't impressive, it was the logic thing to do: keep on moving. The impressive feature is executing the (logical) strategy.

 

[Larry Sweetland]

Anyone know how far back you have to go before the first person managed to get to a 6000 life list, let alone year list? (I realise splits since then will make it incomparable).

 

[jurek]

How many species Noah observed (no heard-only)?

 

[Maffong]

The number is not yet available, but Noah will upload the data soon I hope

Maffong

 

[Paul Chapman]

What is interesting is when you overlay the percentages of additions for birds seen in the different countries. I have some of that data at home which can be extracted from eBird. It is what reinforces the 'jab and move' element to building the list.

OK - I've dug out the details but not cross-checked against the analysis in today's link:-

Antarctica & Falklands - 7 days - 53 species - all new - 7.6 per day

South America
Argentina - 13 days - 435 species - 375 additions (86%) - 28.8 per day
Chile - 4 days - 137 species - 107 additions (78%) - 26.8 per day
Brazil - 19 days - 684 species - 446 additions (65%) - 23.5 per day
Peru - 21 days - 784 species - 488 additions (62%) - 23.2 per day
Ecuador - 12 days - 625 species - 251 additions (40%) - 20.9 per day
Columbia - 27 days - 749 species - 260 additions (35%) - 9.6 per day

Central & North America
Panama - 3 days - 299 species - 68 additions (23%) - 22.7 per day
Jamaica - 3 days - 121 species - 62 additions (51%) - 20.7 per day
Costa Rica - 7 days - 411 species - 158 additions (38%) - 22.6 per day
Guatemala - 5 days - 260 species - 94 additions (36%) - 18.8 per day
Mexico - 17 days - 483 species - 173 additions (36%) - 10.2 per day
USA - 21 days with 215 additions from an unknown species total - 10.2 per day

Western Palearctic & OSME
Iceland - 1 day - 54 species - 36 additions (67%) - 36 per day
Norway - 4 days - 142 species - 102 additions (72%) - 25.5 per day
Turkey - 4 days - 187 species - 124 additions (66%) - 31 per day
Spain - 6 days - 193 species - 51 additions (26%) - 8.5 per day
Germany - 1 day and one addition in transit
UAE - 1 day - 118 species - 39 additions (33%) - 39 per day

Africa
Ghana - 8 days - 318 species - 295 additions (93%) - 36.9 per day
Cameroon - 9 days - 201 species - 97 additions (48%) - 10.8 per day
South Africa - 18 days - 442 species - 304 additions (69%) - 16.9 per day
Madagascar - 8 days - 98 species - 77 additions (79%) - 9.6 per day
Kenya - 10 days - 392 species - 159 additions (41%) - 15.9 per day
Tanzania - 12 days - 387 species - 80 additions (21%) - 6.7 per day
Uganda - 14 days - 517 species - 128 additions (25%) - 9.1 per day

Asia
India - 23 days - 572 species - 373 additions (65%) - 16.2 per day
Myanmar - 7 days - 272 species - 136 additions (50%) - 19.4 per day
China - 7 days - 215 species - 121 additions (56%) - 17.3 per day
Taiwan - 3 days with 45 additions from an unknown number of species - 15 per day
Philippines - 10 days - 210 species - 155 additions (74%) - 15.5 per day
Sri Lanka - 3 days - 86 species - 31 additions (36%) - 10.3 per day
Thailand - 6 days - 266 species - 84 additions (32%) - 14 per day
East Malaysia - 7 days - 229 species - 86 additions (38%) - 12.3 per day
Borneo (West Malaysia) - 7 days - 240 species - 87 additions (36%) - 12.4 per day
Sulawesi (Indonesia) - 8 days - 151 species - 88 additions (58%) - 11 per day
Bali (Indonesia) - 1 day - 71 species - 22 additions (31%) - 22 per day
Singapore - 1 day - 30 species - 4 additions (13%) - 4 per day

Oceania/Australasia
Papua New Guinea - 8 days - 247 species - 198 additions (80%) - 24.8 per day
Australia - 16 days - 432 species - 328 additions (76%) - 20.5 per day
New Zealand - 3 days - 91 species - 41 additions (45%) - 13.7 per day

All the best

 

[Maffong]

Thank you very much Paul for all that info! Very interesting indeed!

Maffong

 

[Paul Chapman]

Thank you very much Paul for all that info! Very interesting indeed!

Maffong

You are welcome. Of course, there are anomalies within these bare statistics. For instance, I am sure that Sri Lanka would have been less concentrated if he had not already done Southern India and the India percentage significantly dropped by over 10% when he went back. He had 53 additions from 196 species in Assam so 27%!

However, the purest figures are those for South America and they illustrate very well the law of diminishing returns and the more and more effort required for new additions within the same regions.

South America
Argentina - 13 days - 435 species - 375 additions (86%) - 28.8 per day
Chile - 4 days - 137 species - 107 additions (78%) - 26.8 per day
Brazil - 19 days - 684 species - 446 additions (65%) - 23.5 per day
Peru - 21 days - 784 species - 488 additions (62%) - 23.2 per day
Ecuador - 12 days - 625 species - 251 additions (40%) - 20.9 per day
Columbia - 27 days - 749 species - 260 additions (35%) - 9.6 per day

Noah saw more species in the UAE for half the additions of Arjan. I've got Noah as slight favourite to retain the record but more work to be done to have a firm view.

All the best

 

[Paul Chapman]

Anyone know how far back you have to go before the first person managed to get to a 6000 life list, let alone year list? (I realise splits since then will make it incomparable).

In the foreward to The Biggest Twitch, Stuart Keith's life list is given as 4,300 in 1974. But his life list was around 6,500 when he died about thirty years later.

In Birding on Borrowed Time, Phoebe Snetsinger's life list is given as 6,780 in 1991. She got to 6,000 with Olive-chested Flycatcher in Ecuador in 1989 and no one at that stage had broken 7,000.

Best I could find on the bookshelf. So the answer is probably mid 1980's??

All the best

 

[Larry Sweetland]

In the foreward to The Biggest Twitch, Stuart Keith's life list is given as 4,300 in 1974. But his life list was around 6,500 when he died about thirty years later.

In Birding on Borrowed Time, Phoebe Snetsinger's life list is given as 6,780 in 1991. She got to 6,000 with Olive-chested Flycatcher in Ecuador in 1989 and no one at that stage had broken 7,000.

Best I could find on the bookshelf. So the answer is probably mid 1980's??

All the best

thanks Paul. Amazing how things have changed for birders as well as birds in that time.

 

[Nutcracker]

Sadly, it's going to go back in the other direction from now on, with birds going extinct and even if not extinct, getting rarer and more time-consuming to find.

 

[temmie]

The sad thing is that finding birds has never been easier:

Tropical small birds live a lot longer than birds of more temperate climates, up to 10 years.
If you cut down all trees and leave some tiny bits of forest, the birds will initially hang around and still find food, but they won't reproduce in great numbers (or not at all), and after they are dead, the (artifically increased) density will drop down sharply, sometimes to zero.

So it has never been a better time to see as much birds in a short time: there is a lot of asphalt, international and national flights as we haven't run out of fossil fuel (yet), and the birds hang on in their tiny patches of forest, easy to lure out in the open, with or without tape/worms.

In 10-20 years the situation will change and with more birds going exctinct, it will be a lot harder to see some big birds (hornbills, parrots, ground birds) and the more range-restricted small birds.

 

[Maffong]

Some more statistical analysis:
He's seen all but 4 families of Non-Passeriformes recognized by Clements
Family name #species observed / #species recognized by Clements = %of species seen
Non-Passeriformes
Ostriches 2 / 2 = 100,0%
Rheas 1 / 2 = 50,0%
Tinamous 22 / 47 = 46,8%
Cassowaries 1 / 3 = 33,3%
Emu 1 / 1 = 100,0%
Kiwis 1 / 5 = 20,0%
Screamers 2 / 3 = 66,7%
Magpie Goose 1 / 1 = 100,0%
Ducks, Geese and Waterfowl 128 / 164 = 78,0%
Megapodes 6 / 22 = 27,3%
Guans, Chachalacas and Curassows 27 / 54 = 50,0%
Guineafowl 2 / 6 = 33,3%
New World Quail 21 / 33 = 63,6%
Pheasant, Grouse and Allies 74 / 175 = 42,3%
Loons 4 / 5 = 80,0%
Grebes 16 / 22 = 72,7%
Flamingos 4 / 6 = 66,7%
Penguins 9 / 18 = 50,0%
Albatrosses 8 / 15 = 53,3%
Shearwaters and Petrels 25 / 87 = 28,7%
Diving-Petrels 1 / 4 = 25,0%
Storm-Petrels 7 / 25 = 28,0%
Tropicbirds 2 / 3 = 66,7%
Storks 16 / 19 = 84,2%
Frigatebirds 2 / 5 = 40,0%
Boobies and Gannets 6 / 10 = 60,0%
Cormorants and Shags 23 / 40 = 57,5%
Anhingas 4 / 4 = 100,0%
Pelicans 7 / 8 = 87,5%
Shoebill 1 / 1 = 100,0%
Hamerkop 1 / 1 = 100,0%
Herons, Egrets and Bitterns 50 / 64 = 78,1%
Ibises and Spoonbills 24 / 34 = 70,6%
New World Vultures 7 / 7 = 100,0%
Secretary-bird 1 / 1 = 100,0%
Osprey 1 / 1 = 100,0%
Hawks, Eagles and Kites 172 / 246 = 69,9%
Bustards 13 / 26 = 50,0%
Mesites 1 / 3 = 33,3%
Sunbittern 1 / 1 = 100,0%
Rails, Gallinules and Coots 74 / 144 = 51,4%
Flufftails 4 / 12 = 33,3%
Finfoots 1 / 3 = 33,3%
Limpkin 1 / 1 = 100,0%
Trumpeters 1 / 3 = 33,3%
Cranes 9 / 15 = 60,0%
Sheathbills 1 / 2 = 50,0%
Thick-Knees 9 / 10 = 90,0%
Egyptian Plover 1 / 1 = 100,0%
Stilts and Avocets 7 / 9 = 77,8%
Oystercatchers 10 / 12 = 83,3%
Plovers and Lapwings 55 / 67 = 82,1%
Seedsnipes 3 / 4 = 75,0%
Painted-Snipes 1 / 3 = 33,3%
Jacanas 8 / 8 = 100,0%
Sandpipers and Allies 64 / 97 = 66,0%
Buttonquail 7 / 16 = 43,8%
Crab Plover 1 / 1 = 100,0%
Pratincoles and Coursers 11 / 17 = 64,7%
Skuas and Jaegers 5 / 7 = 71,4%
Auks, Murres and Puffins 9 / 25 = 36,0%
Gulls, Terns and Skimmers 66 / 99 = 66,7%
Sandgrouse 8 / 16 = 50,0%
Pigeons and Doves 139 / 330 = 42,1%
Turacos 19 / 23 = 82,6%
Hoatzin 1 / 1 = 100,0%
Cuckoos 93 / 144 = 64,6%
Barn-Owls 6 / 18 = 33,3%
Owls 102 / 207 = 49,3%
Owlet-Nightjars 2 / 10 = 20,0%
Frogmouths 7 / 15 = 46,7%
Nightjars and Allies 54 / 97 = 55,7%
Potoos 5 / 7 = 71,4%
Oilbird 1 / 1 = 100,0%
Swifts 62 / 105 = 59,0%
Treeswifts 4 / 4 = 100,0%
Hummingbirds 217 / 342 = 63,5%
Mousebirds 5 / 6 = 83,3%
Cuckoo-Roller 1 / 1 = 100,0%
Trogons 34 / 44 = 77,3%
Hoopoes 2 / 2 = 100,0%
Woodhoopoes and Scimitar-bills 6 / 8 = 75,0%
Ground-Hornbills 2 / 2 = 100,0%
Hornbills 38 / 59 = 64,4%
Todies 1 / 5 = 20,0%
Motmots 12 / 13 = 92,3%
Kingfishers 59 / 117 = 50,4%
Bee-eaters 21 / 28 = 75,0%
Rollers 10 / 12 = 83,3%
Ground-Rollers 1 / 5 = 20,0%
Puffbirds 22 / 36 = 61,1%
Jacamars 11 / 18 = 61,1%
African Barbets 31 / 42 = 73,8%
Asian Barbets 26 / 34 = 76,5%
New World Barbets 7 / 14 = 50,0%
Toucan Barbets 2 / 2 = 100,0%
Toucans 28 / 35 = 80,0%
Honeyguides 10 / 17 = 58,8%
Woodpeckers 162 / 230 = 70,4%
Seriemas 1 / 2 = 50,0%
Falcons and Caracaras 43 / 66 = 65,2%
New Zealand Parrots 1 / 4 = 25,0%
Cockatoos 14 / 21 = 66,7%
Old World Parrots 70 / 180 = 38,9%
New World and African Parrots 86 / 167 = 51,5%
Not observed Kagu, Magellanic Plover, Ibisbill, Plains-wanderer

 

[Maffong]

And now the Passeriformes:
He's seen all but 5 (+1 extinct) families of Passeriformes recognized by Clements
New Zealand Wrens 1 / 4 = 25,0%
African and Green Broadbills 3 / 6 = 50,0%
Asian and Grauer's Broadbill 7 / 9 = 77,8%
Sapayoa 1 / 1 = 100,0%
Asities 3 / 4 = 75,0%
Pittas 10 / 49 = 20,4%
Typical Antbirds 137 / 233 = 58,8%
Crescentchests 3 / 4 = 75,0%
Gnateaters 3 / 10 = 30,0%
Antpittas 29 / 53 = 54,7%
Tapaculos 30 / 58 = 51,7%
Antthrushes 6 / 11 = 54,5%
Ovenbirds and Woodcreepers 180 / 302 = 59,6%
Tyrant Flycatchers 275 / 418 = 65,8%
Sharpbill 1 / 1 = 100,0%
Cotingas 34 / 66 = 51,5%
Manakins 29 / 54 = 53,7%
Tityras and Allies 26 / 33 = 78,8%
Lyrebirds 2 / 2 = 100,0%
Bowerbirds 11 / 20 = 55,0%
Australasian Treecreepers 5 / 7 = 71,4%
Fairywrens 11 / 28 = 39,3%
Honeyeaters 72 / 184 = 39,1%
Bristlebirds 1 / 3 = 33,3%
Pardalotes 3 / 4 = 75,0%
Thornbills and Allies 44 / 64 = 68,8%
Pseudo-Babblers 2 / 5 = 40,0%
Logrunners 1 / 3 = 33,3%
Satinbirds 2 / 3 = 66,7%
Berrypeckers and Longbills 6 / 10 = 60,0%
Whiteheads 1 / 3 = 33,3%
Tit Berrypeckers and Crested Berrypeckers 2 / 2 = 100,0%
Wattlebirds 2 / 5 = 40,0%
Stitchbird 1 / 1 = 100,0%
Whipbirds and Wedgebills 2 / 5 = 40,0%
Quail-thrushes and Jewel-babblers 1 / 11 = 9,1%
Wattle-eyes and Batises 15 / 30 = 50,0%
Vangas 27 / 39 = 69,2%
Bushshrikes and Allies 37 / 49 = 75,5%
Boatbills 2 / 2 = 100,0%
Woodswallows 9 / 11 = 81,8%
Bellmagpies and Allies 9 / 13 = 69,2%
Ioras 3 / 4 = 75,0%
Cuckooshrikes 41 / 87 = 47,1%
Sittellas 2 / 2 = 100,0%
Whistlers and Allies 20 / 57 = 35,1%
Australo-Papuan Bellbirds 2 / 3 = 66,7%
Shrikes 26 / 32 = 81,3%
Vireos, Shrike-Babblers and Erpornis 47 / 62 = 75,8%
Old World Orioles 21 / 35 = 60,0%
Drongos 16 / 25 = 64,0%
Fantails 18 / 50 = 36,0%
Monarch Flycatchers 26 / 100 = 26,0%
Crows, Jays and Magpies 81 / 124 = 65,3%
White-winged Chough and Apostlebird 2 / 2 = 100,0%
Birds-of-Paradise 13 / 41 = 31,7%
Australasian Robins 25 / 47 = 53,2%
Rockfowl 2 / 2 = 100,0%
Rockjumpers 2 / 2 = 100,0%
Bearded Reedling 1 / 1 = 100,0%
Nicators 2 / 3 = 66,7%
Larks 43 / 94 = 45,7%
Swallows 59 / 86 = 68,6%
Fairy Flycatchers 8 / 9 = 88,9%
Tits, Chickadees and Titmice 46 / 60 = 76,7%
Penduline-Tits 5 / 11 = 45,5%
Long-tailed Tits 7 / 11 = 63,6%
Nuthatches 16 / 27 = 59,3%
Wallcreeper 1 / 1 = 100,0%
Treecreepers 6 / 11 = 54,5%
Wrens 65 / 82 = 79,3%
Gnatcatchers 11 / 15 = 73,3%
Dippers 5 / 5 = 100,0%
Bulbuls 85 / 141 = 60,3%
Kinglets 5 / 6 = 83,3%
Cupwings 4 / 5 = 80,0%
African Warblers 15 / 21 = 71,4%
Bush-Warblers and Allies 20 / 36 = 55,6%
Leaf Warblers 44 / 76 = 57,9%
Reed-Warblers and Allies 24 / 61 = 39,3%
Grassbirds and Allies 24 / 61 = 39,3%
Donacobius 1 / 1 = 100,0%
Malagasy Warblers 4 / 11 = 36,4%
Cisticolas and Allies 101 / 147 = 68,7%
Sylviid Warblers 22 / 33 = 66,7%
Parrotbills, Wrentits and Allies 13 / 36 = 36,1%
Yuhinas, White-eyes and Allies 35 / 129 = 27,1%
Tree-Babblers, Scimitar-Babblers and Allies 33 / 52 = 63,5%
Ground Babblers and Allies 31 / 56 = 55,4%
Laughingthrushes and Allies 85 / 144 = 59,0%
Sugarbirds 3 / 5 = 60,0%
Fairy-bluebirds 2 / 2 = 100,0%
Hyliotas 2 / 4 = 50,0%
Old World Flycatchers 180 / 315 = 57,1%
Thrushes and Allies 96 / 166 = 57,8%
Mockingbirds and Thrashers 17 / 34 = 50,0%
Starlings 63 / 122 = 51,6%
Oxpeckers 2 / 2 = 100,0%
Leafbirds 7 / 11 = 63,6%
Flowerpeckers 27 / 47 = 57,4%
Sunbirds and Spiderhunters 83 / 140 = 59,3%
Accentors 5 / 13 = 38,5%
Wagtails and Pipits 39 / 66 = 59,1%
Spotted Elachura 1 / 1 = 100,0%
Waxwings 2 / 3 = 66,7%
Silky-flycatchers 4 / 4 = 100,0%
Hylocitrea 1 / 1 = 100,0%
Olive Warbler 1 / 1 = 100,0%
Longspurs and Snow Buntings 1 / 6 = 16,7%
New World Warblers 81 / 114 = 71,1%
Tanagers and Allies 237 / 386 = 61,4%
Buntings and New World Sparrows 112 / 172 = 65,1%
Cardinals and Allies 39 / 48 = 81,3%
Troupials and Allies 75 / 105 = 71,4%
Finches, Euphonias and Allies 104 / 224 = 46,4%
Old World Sparrows 24 / 42 = 57,1%
Weavers and Allies 72 / 116 = 62,1%
Waxbills and Allies 74 / 140 = 52,9%
Indigobirds 4 / 20 = 20,0%
Not observed Scrub-birds, Bristlehead, Przevalski's Rosefinch, Palmchats, Hypocolius

 

[Maffong]

And if you clear the #species recognized by Clements from the species Extinct, Extinct in the Wild or possibly extinct you get this:

Ducks, Geese and Waterfowl 128 / 164 = 78,0%

128 / (164-4 extinct) = 80%

Guans, Chachalacas and Curassows 27 / 54 = 50,0%

27 / (54-1 extinct in the Wild**) = 50,9%

Pheasant, Grouse and Allies 74 / 175 = 42,3%

74 / (175-2 extinct) = 42,8%

Grebes 16 / 22 = 72,7%

16 / (22-3 extinct) = 84,2%

Storm-Petrels 7 / 25 = 28,0%

7/ (25-1 extinct) = 29,2%

Cormorants and Shags 23 / 40 = 57,5%

23 / (40-1 extinct) = 59,0%

Herons, Egrets and Bitterns 50 / 64 = 78,1%

50 / (64- 1 extinct) = 79,4%

Ibises and Spoonbills 24 / 34 = 70,6%

24 / (34-1 extinct) = 72,7%

Rails, Gallinules and Coots 74 / 144 = 51,4%

74 / (144-11 extinct-1 extinct in the wild**- 1 possibly extinct*) = 56,5%

Oystercatchers 10 / 12 = 83,3%

10 / (12-1 extinct) = 90,9%

Plovers and Lapwings 55 / 67 = 82,1%

55 / (67-1 possibly extinct*) = 83,3%

Sandpipers and Allies 64 / 97 = 66,0%

64 / (97-6 extinct-2 possibly extinct*) = 67,4%

Auks, Murres and Puffins 9 / 25 = 36,0%

9 / (25-1 extinct) = 37,5%

Pigeons and Doves 139 / 330 = 42,1%

139 / (330-9 extinct-1 extinct in the wild**- 1 possibly extinct*) = 43,6%

Cuckoos 93 / 144 = 64,6%

93 / (144-1 extinct) = 64,6%

Owls 102 / 207 = 49,3%

102 / (207-1 extinct) = 49,5%

Nightjars and Allies 54 / 97 = 55,7%

54 / (97-6 extinct-2 possibly extinct*) = 56,25%

Hummingbirds 217 / 342 = 63,5%

217 / (342-2 extinct) = 63,8%

Kingfishers 59 / 117 = 50,4%

59 / (117-1 extinct-1 extinct in the wild**) = 51,3%

Woodpeckers 162 / 230 = 70,4%

162 / (230-2 possibly extinct*) = 71,1%

Falcons and Caracaras 43 / 66 = 65,2%

43 / (66-1 extinct) = 66,2%

New Zealand Parrots 1 / 4 = 25,0%

1 / (4-1 extinct) = 33,3%

Old World Parrots 70 / 180 = 38,9%

70 / (180-7 extinct) = 40,5%

New Zealand Wrens 1 / 4 = 25,0%

1 / (4-2 extinct) = 50%

Honeyeaters 72 / 184 = 39,1%

72 / (184-1 extinct) = 39,3%

Thornbills and Allies 44 / 64 = 68,8%

44 / (64-1 extinct) = 69,8%

Wattlebirds 2 / 5 = 40,0%

2 / (5-2 extinct) = 66,7%

Old World Orioles 21 / 35 = 60,0%

21 / (35-1 extinct) = 61,8%

Monarch Flycatchers 26 / 100 = 26,0%

26 / (100-4 extinct-1 possibly extinct*) = 27,4%

Crows, Jays and Magpies 81 / 124 = 65,3%

81 / (124-1 extinct in the wild**) = 65,9%

Swallows 59 / 86 = 68,6%

59 / (86- 1 possibly extinct*) = 69,4%

Reed-Warblers and Allies 24 / 61 = 39,3%

24 / (61-4 extinct-3 possibly extinct*) = 44,4%

Grassbirds and Allies 24 / 61 = 39,3%

24 / (61-1 extinct) = 40,0%

Yuhinas, White-eyes and Allies 35 / 129 = 27,1%

35 / (129-2 extinct-1 possibly extinct*) = 27,8%

Ground Babblers and Allies 31 / 56 = 55,4%

31 / (56-1 extinct) = 56,4%

Thrushes and Allies 96 / 166 = 57,8%

96 / (166-3 extinct-2 possibly extinct*) = 59,6%

Starlings 63 / 122 = 51,6%

63 / (122-5 extinct) = 53,9%

Flowerpeckers 27 / 47 = 57,4%

27 / (47-1 possibly extinct*) = 58,7%

New World Warblers 81 / 114 = 71,1%

81 / (114-2 possibly extinct*) = 72,3%

Troupials and Allies 75 / 105 = 71,4%

75 / (105-1 extinct) = 72,1%

Finches, Euphonias and Allies 104 / 224 = 46,4%

104 / (224-17 extinct-7 possibly extinct*) = 52,0%

* Possibly Extinct: New Caledonian Rail, Javan Lapwing, Eskimo Curlew, Slender-billed Curlew, Thick-billed Ground-Dove, Ivory-billed Woodpecker, Imperial Woodpecker, Glaucous Macaw, Ua Pou Monarch, White-eyed River Martin, Aldabra Brush-Warbler, Society Islands Reed-Warbler, Moorea Reed-Warbler, White-chested White-eye, Kamao, Olomao, Bachman's Warbler, Semper's Warbler, Poo-uli, Oahu Alauahio, Ou, Kauai Nukupuu, Maui Nukupuu, Maui Akepa
**Extinct in the Wild: Alagoas Curassow, Guam Rail, Guam Kingfisher, Spix's Macaw, Hawaiian Crow

Furthermore virtually impossible/impossible to count: Campbell Island Teal, Madagascar Pochard, Edward's Pheasant, Nechisar Nightjar, Kakapo, Night Parrot. I'm sure I still missed many...

Maffong