Here is a link at the Cornell Lab about Tree Swallows (scroll down to see about their conservation status):
On Friday, May 4, 2018, 3:57:50 PM EDT, Richard Harlow <[log in to unmask]> wrote:
Don't feel bad I only have two boxes with Tree Swallows out of 10.
Usually I have 7-8 boxes with swallows, but the last two years Tree
Swallows have been falling off here in Middlebury.
On 5/4/18 08:06, Mundi Smithers wrote:
> Summer has arrived here in Vermont’s southwestern most town! This morning the Wood Thrush is singing his song for all to hear as is the Baltimore Oriole. Yesterday the Towhee arrived.
> Is it my imagination the the Tree Swallow numbers are down? I have seventeen houses that are normally filled with either Bluebirds or Tree Swallows. Yesterday I did a little checking and there are six houses that are vacant. I seem to remember that their numbers were down last year as well.
> North Pownal
> Sent from my iPad