Citizens asked to monitor impact of invasive bird species
... and habitat loss resulted in a serious decline in bluebird populations in the middle of the last century. Today bluebird populations are rebounding thanks to bird enthusiasts who provide nest boxes in their yards, fields ......ed to visit the web site and enter sightings. The bluebird count was developed to focus the nation's attentio..., the Cornell Lab and NABS named the count for the bluebird because it isa symbol of conservation success. Bluebirds suffered serious population declines during...