olO General Notes. [ April 



Mesa County, Colorado, Notes. — The following notes relate to 

 birds which have not yet been recorded from this County, or are relatively 

 rare within its limits, and warrant being placed on record so as to help 

 round out our knowledge of avian distribution in the State: 



Charitonetta albeola. Buffle-Head Duck.- — A pair of these ducks 

 stayed in a slough near the Sugar Factory at Grand Junction, having 

 first been noticed there on April 18, 1918. 



Oidemia deglandi. White-Winged Scoter. — In October, 1918, a 

 flock of five females of this species was seen by J. W. Spencer, Forest 

 Supervisor, at Mesa Lake, Grand Mesa. One is now a mounted specimen 

 in the collection of the Riverside School of Grand Junction. The deter- 

 mination of this specimen was confirmed by Dr. W. H. Bergtold. 



Astur atricapillus striatulus. Western Goshawk.— A single in- 

 dividual of this species was taken at Clifton in October, 1919; this speci- 

 men is now amongst the mounted birds of the Riverside School. 



Falco peregrinus anatum. Duck Hawk.— On May 19, 1918, I 

 secured a dead bird of this species, which had been found in the yard of 

 Allen School (just east of Grand Junction). This specimen was sent to, 

 and examined by, Dr. Bergtold, who confirmed my previous diagnosis. 



Tyrannus tyrannus. Kingbird. — A pair of this species was seen 

 by the writer at Grand Mesa, near Loma, on August 25, 1919. 



Vermivora celata lutescens. Lutescent Warbler. — A single indi- 

 vidual of this warbler was studied for a long time at close range on Aug- 

 ust 22, 1918, at Pinon Mesa. 



Sitta canadensis. Red-breasted Nuthatch. — This species has been 

 noted several times lately in or near Grand Junction; one was found dead 

 within the city limits on March 10, 1917, during January, 1917, several 

 were detected along the Grand River in its course through the city, quite 

 a number were noted near my cabin which is located in the hills neigh- 

 boring Grand Junction, during the summer of 1919, and on September 2 

 of that year one appeared at my residence in Grand Junction. I have 

 also seen this species at Clifton. 



Sitta pygmaea pygmaea. Pigmy Nuthatch. — Twelve individuals 

 of this species were seen at Enoch's Lake, Pinon Mesa, on August 12, 

 1919, and a flock of about twenty birds was noted on August 21, 1918, 

 and a smaller flock was seen on August 31, 1918, both flocks having been 

 noted on the Mesa just mentioned. 



Sialia mexicana bairdi. Chestnut-backed Bluebird. — This spe- 

 cies was seen in Grand Junction on April 1, 1918, a pair was noticed feed- 

 ing three young on Pinon Mesa on August 9, 1918, and during August 

 of the same year nearly every flock of Mountain Bluebirds (Sialia curru- 

 coides) coming under my observation contained a few of the chestnut- 

 backed species. This species is seen mostly at or above the 8000 feet 

 level of latitude, and is seen in the "Valley" only during migration. — 

 Ada B. Copeland, Grand Junction, Colo. 



