Here’s one of every birdwatchers’ and birdfeeders’ favourites. And this is how much: in the 1960’s and 70’s, the population of these blue flyers went down 90% (!) due to harsh nesting competition between them and their rivals, the starlings and house sparrows.
Wild Bird Feature: All About the Eastern Bluebird – Valley Farms Shop
Bluebird in blossoms hi-res stock photography and images - Alamy
Bluebirds are returning to the North Country - - The Adirondack Almanack
Amazing Animal Facts: Bluebirds - Vetstreet
BIRD OF THE WEEK: THE EASTERN BLUEBIRD – Nature Anywhere
Confessions of a Bluebird Fanatic
A “Blueprint” for Recovery – Nest Boxes and the Eastern Bluebird
Flyers - LITTLE BIRD, garoando conceito
12 Birds and 6 Resolutions: Mid-year Reflections, by Randy Runtsch, Wildlife Trekker
Out My Backdoor: Bluebird Nesting – A True-life Drama
For the Birds: Bluebird provides welcome to spring's inevitable return