I was surprised this morning when I checked the Cornell Lab of Ornithology’s All About Birds site to note the absence of Tree Swallows on the Alaska Peninsula on Cornell’s range map. In fact these birds are common at least as far Southwest on the peninsula as the Chignik River drainage, particularly near settlements where nesting boxes have been established. Further down the peninsula they are listed as “uncommon,” their presence probably limited due to the lack of suitable hollow trees for nesting.

In villages throughout the peninsula the return of swallows each spring is widely anticipated as a true sign of spring. It is reported that one swallow consumes roughly 2,000 small insects (such as mosquitoes and midges) every day. Thus, a nesting box or two installed around one’s home can have a measurable impact on the population of bothersome bugs.