Neotropic vs double crested cormorant from Yucatan (1 Viewer)

[bajadreamer]

Can anyone give me some hints for field marks concerning ID of cormorants? The following pictures were taken in Rio Lagartos, Yucatan in February. Hundreds of these birds.

 

[Tero]

Double crested, from the bit of yellow over the eye.

 

[bajadreamer]

Good tip

Thank you for the positive ID and the field mark. Had never heard that before.

 

[njlarsen]

No single thing is absolute, but compare here: http://www.birdforum.net/opus/Neotropical_Cormorant

Niels

 

[bajadreamer]

Thank you

I am coming to realize that there are only a few "unmistakable" birds out there, but at least that gives me something I can judge by.

 

[Andy Adcock]

No single thing is absolute, but compare here: http://www.birdforum.net/opus/Neotropical_Cormorant

Niels

I didn't realise this was a diagnostic feature either but Sibley supports it ?

Andy

 

[njlarsen]

I see the gular pouch as having rounded edges on this bird, so a second thing in the same direction. I believe someone said there was a few percent where the yellow lore would be misleading, and probably the same with the shape of the gular area.