Leucistic Ruby-throated Hummingbird
Leucistic Ruby-throated Hummingbird photographed in Waukesha County on September, 18 2013. Leucistic Ruby-throated Hummingbird Binomial name: Archilochus colubris Category: Hummingbirds What is Leucism? Leucism is an uncommon condition in birds. This condition is caused by a genetic mutation which prevents pigments, particularly melanin, from being deposited evenly in the bird’s … Continue reading