by Fred Kaluza » Thu Mar 26, 2009 12:53 pm
First seen about 40 minutes ago, my little Tree Swallow has returned to the place he always comes on first arrival! This is fully 11 days earlier than last year (or else I didn't see him on first arrival last year). He seemed a little agitated and not his normal calm self. There was a hawk in the area so maybe that's why. As is his habit, he usually makes an appearance early in the morning in order to make sure no other bird is laying claim to his cavity and then he just hangs out for an hour or so. He must be 3 or 4 years old by now so maybe he's having a hard time reading his calendar. I suspect he then spends the rest of the day scouting out developing food sources and remembering their locations so he can return quickly when the need arrives to feed heavily for the young ones. I'll have to spend some time at the PMCA site to check but many people are seing a steady trend towards earlier arrivals citing slowly rising global temperatures as the cause. I don't know if this is peculiar just to birds closer to their northern limits or if it's being felt across their entire ranges. This year I have my other swallow housing up already so in case I get those Rough-Wings, Barn Swallows or Cliff Swallows nosing around here, they will find something to their liking I hope. Keep looking up!