Can You Identify These Eight North American Swallows?
Mystery Swallow #2
Males have metallic-green or blue-green backs; females are brown above. Both are white below, and the tail is notched. A cavity nester, it has benefitted from the popularity of bluebird nest boxes. Hint: When bluebird houses are not available, it nests in tree cavities.
a) Tree swallow
b) Barn swallow
c) Violet-green swallow
d) Cliff swallow
Answer: a) Tree swallow. This is the only swallow in North America that commonly eats berries (in addition to insects). Because it is not dependent exclusively on insects, it can spend the winter along the southern U.S. coasts.
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Secrets of Successful Fall Bird Feeding
This ebook features professional advice on making your backyard safe and welcoming for birds during fall migration and beyond. It's a resource you'll want to consult every year when summer comes to a close.