Mama laid the first perfect little powder blue egg of her third brood yesterday. She spent the last couple of days putting the finishing touches on the lining of her nest. I haven’t noticed anything unusual in the nest material. One time she wove in a piece of blue ribbon.
A little bluebird ecology for those who are interested in hosting bluebirds or monitoring a bluebird trail. The best way to id the nesting species is to lay eyes on the parents, but sometimes this is not possible on a trail. The nest species can also be identified by examining the nesting material. Bluebirds build an almost exclusively grass nest with a deep cup. Anything else and it’s not a bluebird. Any native cavity nester should always be a welcome resident, though. House sparrows are another matter. They simply do not mix with bluebirds.
Eastern Bluebird eggs are powder blue with no dark spots. Sometimes they may lay a white egg, though. The surface is smooth, and the shape is subelliptical. To the right is an egg display of common cavity nesters from Sialis.org . If you have a question about bluebirds, there is no better source on the web.
The young mockingbirds are growing fast, but remain weak flyers. They don’t mature as fast as the bluebirds and have huge feet in relation to their bodies– kinda remind you of a fourteen-year old. The pic below was taken in my shade bed; they are hanging close to the house.
Click on photos to enlarge.
Third Brood Summary:
- 16 June First sign of nest building
- 20 June Nest completed
- 21 June First egg laid