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Ask Maine Audubon: So many factors can cause birds to flee their nests
Your wildlife questions are answered by Maine Audubon Staff Naturalist Doug Hitchcox.
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Every year I have a pair of great crested flycatchers that construct a nest in a nest box I put up for them in my yard. They build a nest and then leave until the next summer when I see them again. They have done this for four years, and I was hoping you might know why. Thanks.
– Tucker Frank, Farmington (14 years old)
Putting up bird houses is a great way to be able to watch and study birds. It is always a thrill to see birds investigating a box you’ve put up, and even better when nesting material is brought in. But what a letdown when the nests are abandoned. I can imagine Tucker’s four years of watching (if you’re 14, four years is a long time) has been especially deflating. It is hard to always know the exact cause, but typically, abandonment is caused by some disturbance, so let’s think about what it c