The cold, snow and ice that's lingered into Spring has many of us fed-up and annoyed, but it can be much worse for other species. Seatuck Board member Mike Jaklitsh, who has been working on readying the next boxes at Scully, found this dead tree swallow today. It was frozen inside one of the boxes he was working on.
The wintry conditions are diffucult for migratory species expecting to find warmer weather (the timing of their migration is governed more by photoperiod and less by weather conditions). It's especially tough on some of the earliest-arriving migratory bird species, which have, in some cases, flown from South or Central America and arrive with seriously depleted fat reserves. This leaves them in drastic need of food. For those insectivorous species that rely on flying insects, such as tree swallows, being greeted by a serious cold snap can be fatal. If cold weather hits and lingers, insects don't emerge and the birds are at risk. While they do eat berries and other food sources when necessary, they don't have much time or energy to search.
It's a sad fact of nature. Hopefully Mike's good work on the nest boxes at Scully will result in a good fledging year at the property and make up for any loss in the population from the cold Spring.
And, I'm happy to report, Mike took the bird with him; he plans to have it mounted and displayed at Scully. Thanks, Mike.