help please from Guanacaste, NW Costa Rica (1 Viewer)

Deb335077

Well-known member

• Jan 16, 2015

• #1

Please help with a few from Guanacaste in the North West corner of Costa Rica taken this week
1. maybe one of the black hawks
2. which wren
3. which trogen
4. which oriole
5. maybe Hoffman's woodpecker
thanks for any help given
Debbie

 

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  IMG_9567 Black Hawk day 2 b.jpg

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  IMG_9704 which wren day 2a.jpg

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  IMG_9795 which trogon day 2.jpg

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  IMG_9834 Hoffman's woodpecker day 2.jpg

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stuartvine

Well-known member

• Jan 16, 2015

• #2

1,. I'd say Mangrove Black Hawk, but not 100% certain...
2. Rufous-naped Wren
3. ?
4. Streak-backed Oriole
5. Yes, Hoffman's

 

Rob Olivier

Well-known member

• Jan 16, 2015

• #3

3 must be Violaceous Trogon

 

dwatsonbirder

Well-known member

• Jan 16, 2015

• #4

I would go Black headed based on the apparently blueish orbital ring.

 

Rob Olivier

Well-known member

• Jan 16, 2015

• #5

dwatsonbirder said:

I would go Black headed based on the apparently blueish orbital ring.

Click to expand...

You are right, Black-headed Trogon it is.

 

stuartvine

Well-known member

• Jan 16, 2015

• #6

Nice one with the Trogon I don't have nearly enough experience to tell them apart from the photo (I haven't seen either - dammit). Oh well, yet another excuse to go again one day ;-)

 

njlarsen

Gallery Moderator

Opus Editor

Supporter

• Jan 16, 2015

• #7

I too think that the black hawk most likely is Common, compare: http://www.birdforum.net/opus/Common_Black_Hawk

Notice that Mangrove BH is lumped into Common, and anyway, the originally described Mangrove was subspecies subtilis which is found in NW South America only.

Niels

 

stuartvine

Well-known member

• Jan 16, 2015

• #8

Interesting - I was under the impression that the Common was only found on the Atlantic Coast and the Mangrove all the way up the Pacific side (at least according to Helms) - then again they are described as being possibly conspecific. I have to admit though that I can't see any difference between the two and I've been almost in touching distance of both!

 

njlarsen

Gallery Moderator

Opus Editor

Supporter

• Jan 16, 2015

• #9

Take a look at:
http://www.birdforum.net/showthread.php?t=148521&highlight=mangrove+black+hawk

I know there was an earlier thread about this group, but cannot find it right now.

Niels

 

stuartvine

Well-known member

• Jan 16, 2015

• #10

Thanks Niels, makes sense, although I'm now one species less on my Costa Rica and world list (or would be if I could ever be bothered to add them all up). ;-)

 

K

Kratter

Well-known member

• Jan 16, 2015

• #11

Common and mangrove black hawks are now considered conspecific (AOU NACC and others). There was very little reason for their split.