Chipping sparrows are similar to other sparrows with rusty crowns but have a white supercilium and black eye line in spring and summer. Field sparrows have a pink bill and white eye ring. Swamp Sparrows have rusty wings and a dingy breast. Deshutes...
Birds; Migratory birds; Monitoring; Perching birds; Research; Statistics; Species of concern; Wildlife management;
This is a status assessment and conservation plan for the Cassin's Sparrow. It includes a description and natural history of the bird, as well as range information pertinent to breeding, migration and wintering, monitoring activities, population...
This is a guide to altricial passerines. It has an explanation of variables used for aging birds and an explanation of methodology employed, and provides information obtained while recording the early aging of the Dusky Flycatcher, the Carolina...
