. The birds of Wyoming . e sub-ject to considerable modificationin future. It is almost certainthat the rather peculiar distribu-tion of the various items of foodthrough the season will prove to-be more apparent than real inthe light of more extensive obser-vations. In the meantime wemay safely conclude (i) that theYellowhead feeds principallyupon insects, grain, and weedseed, and does not attack fruitor garden produce; (2) that itdoes much good by eating nox-ious insects and troublesome weeds, and (3) that where tooabundant it is likely to be injurious to grain. When it is considered that the
. The birds of Wyoming . e sub-ject to considerable modificationin future. It is almost certainthat the rather peculiar distribu-tion of the various items of foodthrough the season will prove to-be more apparent than real inthe light of more extensive obser-vations. In the meantime wemay safely conclude (i) that theYellowhead feeds principallyupon insects, grain, and weedseed, and does not attack fruitor garden produce; (2) that itdoes much good by eating nox-ious insects and troublesome weeds, and (3) that where tooabundant it is likely to be injurious to grain. When it is considered that the Redwing has been ac-cused of doing immense damage to grain fields, it is evidentthat the Yellowhead, which has been found to eat nearly threetimes as much grain as the former, must be capable of muchmischief in localities where it becomes superabundant. Data are rather abundant on the occurrence of this speciesin Wyoming. Cooper reports it from Fort Laramie, 1857;Williston found them abundant at Lake Como; Coues reports. 2. SREvi/EnS BLACMaiRD. 114: Wyoming Experiment Station. specimens from Devils Gate, Sweetwater, and Green river;Bond reports them from Cheyenne; Jesurun reports them com-mon at Douglas. The National Museum records include thefollowing: No. 88087 taken by Shufeldt at Fort Laramie,No. 71278 taken at Fort Bridger by Shufeldt, No. 8221 takenat Fort Laramie, and No. 38514 taken at Laramie peak. Thereare a half dozen skins in the University collection. Five ofthem were taken on the Laramie plains and one by West ofBuffalo. They breed in considerable numbers on the Laramieplains at elevations varying from 7,250 to 7,500 feet. Aikenreports them from near Sherman. 498. Agelaius phoeniceus (Linn.).Red-winged Blackbird. Summer resident; rather common, but never nest with the Yellow-headed Blackbird about the marshesand lakes and also with Brewers along the small streams up toan elevation of 8,000 feet. The Red-wings nesting with Brew-ers are different from
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