Glossy vs White-faced Ibis
Identification Guide to North American Birds, Part II
(Copied with permission from the author.)
Known to many as The Banders' Bible, "Pyle I and II" are my go-to resource for tricky IDs.
these two books
to anyone interested in bird identification!
Order online here:
See Dave Slager's photos of a SY White-faced Ibis and 2 HY
Page 1 of 4 (p371)
Page 2 of 4 (p372)
Page 3 of 4 (p373)
Page 4 of 4 (p374)