Assertion: hummingbird | /r/HasAspect | plain white undertail coverts
Facets:
Source sentences:
text: While many hummingbirds have plain white undertail coverts, any color wash, spots or other markings can be excellent field marks for accurate identification.
text: While many hummingbirds have plain white undertail coverts, any color wash, spots or other markings can be excellent field marks for accurate identification.