Birds Lay Eggs in the Strangest Places

The Cogbills on Add Drive returned home from vacation to discover that they could not use their stroller which was left outside near their house. This is why...

A House Wren had decided that the stroller was a great place to lay eggs! According to Cornell Lab of Ornithology House Wrens usually nest inside tree holes and nest boxes. As the season progresses their nests can become infested with mites and other parasites that feed on the wren nestlings. Perhaps to fight this problem, wrens often add spider egg sacs into the materials they build their nests from. In lab studies, once the spiders hatched, they helped the wrens by devouring the nest parasites.

Here are two photos of a House Wren I took at Luria Park.

This little bird weights as much as two quarters. It will fiercely compete for a likely nesting site with loud vocalizations and pecking much larger birds. They are one of our summer birds and will migrate to South America in the fall.
Thanks to the Cogbills for forwarding the nest photo and for protecting our song birds!