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America. In spring, they return by the same overland route. That’s a lot of mileage for a six-inch bird.
Barn Swallows bui,ld nests of mud that are saddled on beams or plastered against walls. Once ! sat in my car with a telephoto lens thrust out the window to photograph Barn Swallows that were gathering pellets of mud for nest construction. I wish 1 had observed more carefully instead of concentrating on composition, light and focus.
There is a controversy over whether these elegant birds carry bits of mud in their mouths or whether they use the bill as a shovel and transport mud pellets on top of their bills.
One observer noted that it takes two swallows eight full days of 14 hours to complete a nest. Mud pellets and straw were brought in every two or three minutes. Four to five eggs are laid and must be incubated for an average of 15 days with male and female relieving each other at 15 minute intervals. The female incubates at night while the male perch
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