The Basics of Bird Photography
By katydid56 on June 11, 2012
BlogHer Original Post
A fecal sac is a clean, tough mucous/gelatinous membrane/film containing the excrement of nestling birds. Nestlings usually excrete one sac after each feeding, especially as they get older. The parent grasps the sac by the middle with their beak. I read that both parents contribute to the removal of the waste matter, but it was only the female that I saw doing so on this particular day.
After three hours of sitting and being patient, and just taking it easy on a somewhat cloudy early summer afternoon, I managed to get them both at the box at the same time.
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