On this picture, Bob is checking how many eggs are in the box.
We also look to see if they are warm.
Four lovely blue bird eggs!
When you look at the next picture, you will notice that one egg is different. Can you guess what kind of egg this is?
The correct answer is...a cow bird egg.
The cow bird doesn't build it's own nest, but uses other birds' nests to lay their eggs. The bad part is that the young cow bird will take over the nest. The young bluebirds will not thrive because the cow bird will dominate the nest.
The cow bird doesn't build it's own nest, but uses other birds' nests to lay their eggs. The bad part is that the young cow bird will take over the nest. The young bluebirds will not thrive because the cow bird will dominate the nest.
A tree swallow has claimed box #29 as her own.
She will only have one brood and then vacate the box.
Hopefully a bluebird will go in and make a nest.
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