REPORT UPON ORNITHOLOGICAL SPECIMENS. 



67 



CAPBIMULGID^E (the Goatsuckers). 



58. Antrostomus nuttalli, And. KuttalFs Poor- Will. 



May 13, a male was started from among some bushes. Two days 

 later a second was taken in a similar locality. This may, perhaps, be 

 taken as the time of the general arrival. 



PICID^E (the Woodpeckers). 



59. Colaptes auratus (L.), var. mexicanus, Sw. Red-shafted Flicker. 

 Common in the cottonwood-groves along the Platte. 



60. Melanerpes erythrocephalus, (L.) Red-headed Woodpecker. 



A single individual was taken by Dr. Rothrock, June 3,, and was the 

 only one seen. 



FALCONID^E (the Falcons). 



61. Falco saker, Schleg., var. polyagrus, Cass. Prairie-Falcon. 



Of this falcon, a single male in adult plumage was shot. The speci- 

 men is of interest, as being the tbird only known to have been taken 

 in this plumage. Mr. Ridgway has kindly compared this with the 

 others in the Smithsonian collection, and finds it to present the follow- 

 ing differences : The transverse bars of the upper surface are more 

 sharply defined, and are pale earth-brown or dull ochraceous, instead 

 of ashy-drab, and are very distinct on the rump instead of being entirely 

 obsolete. The upper parts lack entirely any bluish tinge, which is so 

 strongly marked on the other two specimens. The markings on the 

 flanks are in the form of large transverse spots of dark vandyke-brown, 

 with intervening rounded spots of pale reddish -drab. Cere, legs, and 

 feet light yellow. 



62. Falco sparverius, L. Sparrow-Hawk. 

 Very common everywhere. 



