It has been a long time since we have seen swallows in our area. We had them in our bird houses when we lived at our last place. There was a time a few years ago when one of the villa residents had a bird house and she had some.
I saw some flying around today! I only saw one at a time and they were some distance away. Can’t be sure we have a pair however. I hope we do, they eat huge numbers of airborn insects. It is the only place they get their food. Mosquitoes are there primary food source.
When we had our cottage, I had 4 birdhouse up and they all contained tree, or green swallows. We had barn swallows as well and they nested over our front door, which made it a bit difficult to go in and out from there. Our next door neighbour also had swallows but he had the bank swallow that built a nest under his eaves. It is against the law, (the migratory bird act) to take these nests down, but that didn’t deter my neighbour. He was a bit more than a bit of a schmuck anyway, so what could you expect. We had one bird that made a nest in the tongue of our boat trailer!
These birds have a very nice song, are magnificent fliers, that we were fascinated with.
This was a lake environment and there was always a good food supply. In the fall they would line up on the utility wires in front of our house on the street, and one time I counted over 2000 birds ready to fly south. I only counted the birds on one wire and multiplied by the number of wires the birds were on. I tried to get some pictures of this phenomena, but had no luck. You can link to this web site and see the kind of thing I mean.
Another web site that shows nesting and migrating swallows is http://www.treeswallowprojects.com/cafter.html
I do hope we get a bird house with a couple of these fascinating birds around here, but it is a slim hope. The sparrows will drive the swallows out.