562 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult male. —Length (skins), 109-133 (120); wing, 59-67 (64.2); 

 tail, 50.5-58 (54.3); exposed culmen, 10-11.5 (10.7); tarsus, 15-17 

 (16.2); middle toe, 7.5-8.5 (8.1). « 



Adult feynale.— Length, (skins), 115-124 (118) ; wing, 59.5-64.5(60.9) ; 

 tail, 51-56.5 (52.5) exposed; culmen, 10-11 (10.5); tarsus, 15.5-17 

 (16); middle toe, 7.5-9 (8.3).'' 



Eastern North America; north to Prince Edward Island, Maine, 

 southern Labrador?, south end of Hudson Bay (Moose Factory), 

 Keewatin (south end of Oxford Lake,) Mackenzie (Fort Simpson; Fort 

 Resolution; Fort Providence; Fort Norman; Hay River) , Manitoba 

 (Fort Garry; Lake Manitoba; lower Saskatchewan), etc., west to 

 eastern base of Rocky Mountains, in Athabasca (Slave River; Smith 

 Landing; Fort Chippewayan; Fort McMurry; Grand Rapid), Mon- 

 tana (Fort Custer, May 11-18; Bear Creek; Fort Keogh), Wyoming 

 (Black Hills, breeding), Colorado (Denver; Colorado Springs; Spring- 

 field, etc.) and Western Texas (San Angelo, breeding?; Bonham, 

 breeding?; Kendall Co., May 14; San Antonio, April); breeding 

 southward to New Jersey (Camden), Pennsylvania (Delaware, Craw- 

 ford, P]rie, Indiana, Clearfield, McKean, Blair, Cambria, Luzerne, Sul- 

 livan, Bradford, and Elk counties), northern Indiana (Lake, Dekalb, 

 and Carroll counties) , south-central Iowa (Decatur and Mahaska coun- 

 ties), southeastern South Dakota, eastern Wyoming (Black Hills), 

 etc., and along Allegheny Mountains to North Carolina (at 2,000 to 

 4,000 ft. alt.) ; said to breed also at San Angelo, Tom Green County, 

 central Texas, and Bonham, Fannin County, northeastern Texas; 

 in winter south through eastern Mexico, in States of Tamaulipas 

 (Alta Mira), Nuevo Leon (Mier), San Luis Potosi (Valles), Vera 

 Cruz (Papantla; Orizaba; Jalapa; Mirador; Teocelo; Jaltipan; 

 Coatzocoalcos; Chichicaxtla), Puebla (Metlaltoyuca; Tuxtepec; 

 Tehuacan; Piextla), Mexico (north slope Volcan de Toluca), Mich- 

 oacan (La Salada), Guerrero (Acapulco), Oaxaca (Cuicatlan; Guichi- 

 covi; Chihuitan; Iluajuapam; Santa Efigenia; Japana; Tehuan- 

 tepec City), Tabasco (Frontera), Campeche (Apazote; Yohaltun), 



a Eighteen specimens. 

 b Ten specimens. 



