isakovdenisrussia 的最愛

The oldest is about 6 weeks old. They are so cute!!!

📸: By Lee Pauser

This observation was part of a nest box trail done in conjunction with the California Bluebird Recovery Program (CBRP), which runs the Cavity Nesters Recovery Program (CNRP). CNRP involves many volunteers across California who establish and monitor nest box trails for cavity-nesting birds. During the breeding season, these boxes are checked weekly for parasitism, predation, number of eggs, nestlings, and number of young fledged. Then at the end of the nesting season, volunteers submit their results to CBRP. We compile these results and submit them to the Cornell Lab of Ornithology’s NestWatch program and other interested organizations.