Prothonotary Warbler | Long Island, NY | Jay Koolpix | Flickr
Prothonotary warbler - Wikipedia
Nestpionage! And Other Feathered Curiosities From History : NPR
Ohio Division of Wildlife - The Prothonotary Warbler got its name from the bright yellow robes worn by papal clerks, known as prothonotaries, in the Roman Catholic church. This one photographed recently