110 Wyoming Experiment Station. 



of birds in the state have noted this peculiar bird, and the data* 

 are too voluminous to publish. 



492. Cyanocephalus cyanocephalus (WiED.). 

 Pinon Jay. 

 Summer resident ; common locally. During migration, 

 especially in the spring, they often appear in good sized flocks. 

 Possibly some may remain in the state all winter. There are 

 no breeding records from southern Wyoming. I have found 

 young birds near the Montana line north of Corbet in a brok- 

 en country with scattering pines and also at the foot of the 

 Big Horn mountains above Hyattville. But few collectors 

 have found this bird in the state. Coues reports six speci- 

 mens from Wyoming, three of which were taken in the Big 

 Horn mountains ; Bond sees them occasionally at Cheyenne ; 

 Aiken reports them from Sherman ; Cary has furnished the 

 following note, which applies to the Newcastle vicinity : "This 

 bird is universally disliked by ranchmen, on account of the 

 damage it does to growing crops, and large numbers are killed 

 and poisoned. It is very difficult to get within gunshot of 

 these Jays in summer, but I was told that in cold weather, 

 when driven to the ranch by hunger, they became very bold, 

 even entering the kitchen of the ranch house in search of food. 

 When ravaging the crops Pinon Jays go about in immense 

 flocks, and always keep sentinels posted to warn them of im- 

 pending danger. They are partial to the foothills, and are 

 seldom seen back in heavy timber. Fully grown young were 

 common on June 4th in 1900." 



BLACKBIRDS, ORIOLES, ETC. 



494. Dolichonyx oryzivorus (Linn.). 

 Bobolink. 



Summer resident ; rather common in eastern Wyoming, 

 but decreasing in numbers rapidly to the westward. The atti- 

 tude of the citizens of Wyoming toward the Bobolink is entire- 



