WyYoMING Birps. 51 
436. Stellula calliope: Calliope Hummingbird. 
An exceedingly rare summer resident. Metz has found it 
nesting at Sheridan. In the third edition of the A. O. U. 
check list the statement is made: “Casual in Wyoming and 
Colorado.” 
ORDER XVII. PASSERES. 
TYRANNIDAE (Tyrant Flycatchers). 
The Flycatchers, as their name indicates, feed almost entirely 
upon insects, which are caught on the wing. The habits of these 
birds are well known to all. About 90 per cent of their food con- 
sists of insects, most of which are noxious species. The Kingbird 
sometimes catches honey bees, but this is not a common habit with 
it. About 10 per cent of the food of the common Flycatchers con- 
sists of small fruits, such as elderberries, wild cherries, blackberries, 
etc. All Flycatchers are highly beneficial and are among the best 
friends of the agriculturist. 
REFERENCES: 
1. “Food of Our More Common Flycatchers,” Biological Sur- 
vey Bulletin No. 44. 
2. “Birds in Their Relation to Man,’ Weed and Dearborn, pp. 
174-177. 
3. Farmers’ Bulletin No. 506, pp. 18-23. 
444. Tyrannus tyrannus: Kingbird. 
Fairly common summer resident in eastern Wyoming; to 
the westward it becomes much less common. 
447. Tyrannus verticalis: Arkansas Kingbird. 
Common summer resident of the lower altitudes over the 
entire state. 
448. Tyrannus vociferans: Cassin’s Kingbird. 
Knight says: “Probably a summer resident, but quite rare.” 
Our only recent records of it are by Percival, and Walker 
in Albany County. 
452. Myiarchus crinitus: Crested Flycatcher. 
“Rare and probably accidental. The Wyoming record rests 
upon a single specimen taken by Dr. Jesurun of Douglas on 
