
Amelia: This urban pond was a great discovery. Look, the community has even installed nesting boxes on tall poles around the pond. I wonder who’s nesting in them. Oh, a bird’s head popped out of that box- I’ll go check it out.
Tree Swallow: Hello, this nest is taken. You can’t use it. Goodbye.
A: Wait- I’m not interested in taking your nest. I just wanted to meet you. What kind of bird are you?
TS: I’m a Tree Swallow. I thought that would be obvious.
A: Why? We’re in the middle of a grassy field near a pond, nowhere near trees.
TS: (looks around) Oh, right- we’re nesting in a human-made box this year instead of a hole in a tree. Traditionally, we nest in trees. But humans have a bad habit of cutting down dead or rotting trees…
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