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 was to roll in the sand in our garden. When around home they loved to perch on the wires or lounge on the porches. They also visited a bald tree not far off, and there preened themselves. I never saw them visit trees that had foliage on them.

Some more English sparrows tried from time to time to come back. It seemed as if they watched for the martins to go away. Then they would come and peer into the rooms, and even go in. The martins, however, always left one of their number on guard, for usually the intruders were soon chased away.

Once a martin caught an English sparrow in his room. He went in, but kept one wing outside, and that wing flapped and fluttered just like a flag in a high wind. No doubt the sparrow got a good beating with the other wing. Sounds of "Kr-r-r! kr-r-r!" came from the room. "Kr-r-r!" is the scolding word of the martins. It sounds as if someone, walking beside a picket fence, were scraping it with a stick. I have often heard the martins say it to the sparrows, but never have I heard them use it among themselves. They are the most contented birds, always polite and kind to one another. For good behavior I have put them on the honor roll with the chickadees and the goldfinches.

The martins are also wonderful singers and whistlers. They sing all day long, and often after dark. Their song is made up of three parts: a