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 July, 1909 ANNOTATED LIST OF THE BIRDS OF THE BARR LAKE DISTRICT 117 uncommon during migration. Nests commonly along the prairie streams east of Barr. Archibuteo lag0pus sancti-johannis. American Rough-leg. Common during migration. Archibuteo ferrugineus. Ferruginous Rough-leg. Very common during migration. Aquila chrysaetos. Golden Eagle. Winter resident; common. Halia.etus !eucocephalus. Bald Eagle. Resident; not common. Fa!co mexicanus. Prairie Falcon. Migratory; not common. Falco peregrinus ariaturn. Duck Hawk. Common during migration. Fa!co columbarius. Pigeon Hawk. Rather common during migration. NEST AND EGGS OF KILLDEER Falco columbarius richardsonfl. Richardsoil Merlin. Migratory; rare. Only two definite records from Barr that we know of. Falco sparverius. Sparrow Hawk. Summer resident, abundant. The com- toonest hawk in the Barr district. Very rare in winter. One was take]] near Barr about Jan. l, 1909. Fa!co sparverius pha!oena. Desert Sparrow Hawk. Summer resident, not common. (?) A few specimens referable topa/ocna have been taken at Bart. Pandion haliaetus carolinensis. Osprey; Fish Hawk. Not uncommon during migration. Asio wilsonJanus. Long-eared Owl. Resident; not common. Nests along the Platte River.