[Tweeters] Cliff Swallow Nest Abandonment
mgd at u.washington.edu
Wed Jul 13 13:53:35 PDT 2005
I believe these are called swallow bugs, and they can have a big impact (i.e. negative) on nestling survival.
I highly recommend "Swallow Summer" by Charles Brown. He has been studying cliff swallows for almost 20 years in Nebraska, and this is an account of one of his field seasons.
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