340 PROCEEDINGS OF THE ACADEMY OF 



Summary: Cyanocitta cristata. — 



[June, 



"Warningly colored" species 

 Others "specially defended". 

 "Non-protected" species 



Accepted, rejected Disregarded and 

 and disregarded. rejected. 



Spe- 

 cies. 





 

 3 



Specimens. ^P e ~ Specimens. 



A R D 







24+4 5 



2 

 

 



D3 

 

 



R3 

 

 



Imagos of Philosamia cynthia, at least, among the things ac- 

 cepted are seldom or never encountered by wild bluejays. This 

 species was imported with its food plant Ailanthus glandulosus, and 

 is established in very few places. The cocoons of this species could 

 not be opened by the jay, but when opened for him the pupae were 

 eaten. Of the items refused, hen's eggs are all too often attacked 

 by wild birds ; living birds and mice are frequently killed and eaten, 

 and mulberries also are eaten under natural conditions. 



Among things both accepted and rejected, crickets (Gryllus) and 

 May-beetles (Laclino sterna) are commonly devoured by free birds. 

 The carabid Scarites also has been found in the stomach of this 

 species. Beechnuts were disregarded by the captive jay, and acorns 

 were both disregarded and refused, though some were afterwards 

 eaten. Both of these nuts are frequently eaten by wild jays. These 

 instances in themselves are sufficient to show that acceptances and 



