Piebald robin known for white patches caused by lack of pigment

Journey North American Robin

Back Yard - York, Pennsylvania : r/whatsthisbird

Why Is My Robin Half White?

Great Plains Connections: What Is That White Bird? •Nebraskaland Magazine

A Very Unusual (Leucistic) Redtailed Hawk – Foothills Clusters Wildlife

NYS Department of Environmental Conservation - Have you ever seen a bird with white or faded patches of feathers, mixed in among its normal plumage, like our little American Robin friend, here?

Has a piebald American robin been spotted in Squamish? - Squamish Chief

Piebald American Robin - FeederWatch

How rare are leucistic and albino birds? - Avian Report

What's in a name? Nomenclature for colour aberrations in birds reviewed

Piebald robin known for white patches caused by lack of pigment