It would have been plain to the veriest novice that they were partners in that cradle.
"Well, I'll be switched!" muttered Freckles.

"If that ain't both their nest! And he's yellow and she's green, or she's yellow and he's green.
Of course, I don't know, and I haven't any way to find out, but it's plain as the nose on your face that they are both ready to be fighting for that nest, so, of course, they belong.

Doesn't that beat you?
Say, that's what's been sticking me all of this week on that grass nest in the thorn tree down the line.

One day a blue bird is setting, so I think it is hers.

The next day a brown bird is on, and I chase it off because the nest is blue's.