[cobirds] Cottonwood Marsh (Boulder Co) ibis

[David Tønnessen]

Hey Charles,

Yes, the bird looks like a normal White-faced Ibis that hasn't fully molted 
into alternate (breeding) plumage yet. The legs are very deep red and the face 
is the pattern of a non-breeding bird.



David Tonnessen
Colorado Springs

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[cobirds] Cottonwood Marsh (Boulder Co) ibis

[Charles Hundertmark]

The ibis I previously reported at Cottonwood Marsh is either a Glossy x 
White-faced Ibis hybrid or a White-faced Ibis that has not completed molt into 
its alternate plumage. The facial skin lacks the white fringe that is typical 
of White-faced Ibis. That initially threw me off as well as the birder who 
pointed the bird out to me. 

However, the iris is red as are the legs which are indicative of White-faced. 
The facial skin appears gray in some photos, though it looks more pinkish in 
others. Gray facial skin would suggest Glossy Ibis; pink would suggest 
White-faced. 

I’m attaching a link to the eBird report https://ebird.org/checklist/S68149914 
 which includes photos. I’d be 
interested in opinions. 

Chuck Hundertmark
Lafayette, CO




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