Looks like the result of a wet night in a nest hole in a black walnut. This kind of staining is probably acquired from the environment and not genetic.
Kevin From: bounce-115766065-3714...@list.cornell.edu [mailto:bounce-115766065-3714...@list.cornell.edu] On Behalf Of Yo Henrys Sent: Thursday, May 22, 2014 10:04 AM To: NYSBIRDS-L Subject: [nysbirds-l] Yellow Hairy Woodpecker Pair Sparkill NY Male and Female Hairy Woodpeckers. Seen at backyard suit feeder Sparkill NY. May 15-21, 2014. The pair take turns feeding from the suit feeder in the morning and early afternoon. Both the male and the female are yellow in color. You can see photos of them here: https://www.flickr.com/photos/9337254@N08/sets/72157644378247397/ Maureen Henry Sparkill, NY -- NYSbirds-L List Info: Welcome and Basics<http://www.northeastbirding.com/NYSbirdsWELCOME> Rules and Information<http://www.northeastbirding.com/NYSbirdsRULES> Subscribe, Configuration and Leave<http://www.northeastbirding.com/NYSbirdsSubscribeConfigurationLeave.htm> Archives: The Mail Archive<http://www.mail-archive.com/nysbirds-l@cornell.edu/maillist.html> Surfbirds<http://www.surfbirds.com/birdingmail/Group/NYSBirds-L> BirdingOnThe.Net<http://birdingonthe.net/mailinglists/NYSB.html> Please submit your observations to eBird<http://ebird.org/content/ebird/>! -- -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME http://www.NortheastBirding.com/NYSbirdsRULES http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nysbirds-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birdingonthe.net/mailinglists/NYSB.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
