Mrs. Tree Swallow returning to the nest. You could tell at this
point that the pair had eggs in their nest. After the eggs are laid,
the male guards the nest while the female goes out to feed.
When she returns, he leaves. This photo was taken on June 3rd.
Tree Swallow eggs are small, averaging about 1.8 gm at laying,
but female swallows are also small birds, averaging only 20 gm.
Female going inside the birdhouse after daddy left. These little
birds were so much fun to watch!
Check out the link for interesting info on Tree Swallow egg
incubation http://www.treeswallowprojects.com/cincubat.html
