Caption: Zonotrichia albicollis #ML63894671. Image credit (C) 2015 Keenan Yakola, taken on Seal Island, ME (Asset available at https://macaulaylibrary.org/asset/63894671)
White-throated sparrows have 2 body types and 4 genders! [Gender Showcase, K-5]
White-Throated Sparrow
These birds have boy bodies that act in two different ways and girl bodies that act in two different ways. This means they have four genders and two body types!