Here are a few birds that should potentially be in the not-seen list, or at least serve to keep the thread active and discuss some of the world's rarest and most difficult to see birds:
Dwarf Tinamou
Alagoas Curassow (has any birder seen this before it went extinct in the wild?)
White-collared Kite
Blue-eyed Ground-Dove
Scaled Ground-Cuckoo
Pernambuco Pygmy-Owl
Alagoas Foliage-gleaner
Rondonia Bushbird
Bahia Tapaculo
Araripe Manakin
Golden-crowned Manakin
Maybe Guy Kirwan has seen some of these?
Carlos
Well, this is a pretty tough set of birds other than the
Antilophia manakin (which is easy provided you go to the right mountain range!). The
Lepidothrix should be reasonably easy too, provided you can be bothered to go to its relatively small range (seemingly sandwiched by those of 2/3 congenerics), which I haven't ... yet.
Of the 11, I scrape 50% with six (namely the
Taoniscus, the kite, the tapaculo, the
Neomorphus, the f-g, and the
Antilophia). If you want to see the f-g, you'd best go to NE Brazil soon—it must be periliously rare now and perhaps already as good as genetically extinct.
No birder saw the
Mitu and the pygmy owl is baffling for its failure to be recorded. To my knowledge the only people to have seen it alive are Luiz Gonzaga, Ade Long and Luis Claudio Marigo. I went to the type locality earlier this year, but no joy, just like everyone else. So no sightings since 2001, much less since its description a few years later. But how a
Glaucidium should drop off the face of the Earth is really weird.
I'm sure the
Columbina should turn up again though. Fábio Olmos has been looking I believe.
Perhaps Brad Davis (who visits BF occasionally) has seen the bushbird by now given that he's been to Pousada Rio Roosevelt a couple of times.
