286 THE FOOD OF BIRDS IN INDIA. 



1565. Ardeola grayi. Pond-heron. Its especial food is 

 crabs. It will, of course, also eat fish, frogs, and various 

 aquatic insects. Jerd. B. I. Ill, 751. 



It feeds chiefly on frogs and crabs, occasionally on fish, 

 insects, &c. F. I. IV, 394. 



Stomachs examined. 



14-1-08. 3 Brachytrypes achatinut. 

 1 Grasshopper head- 

 3 Small ants. 



1 Caterpillar ? 

 24-3-09. 1 Atractomorpha crenulata* 



2 Tryxalids. 

 1 Oxya sp. 



1 Crickets leg. 

 5 Zygopterids. 

 1 Crocothemis servillia. 

 17 Dragon-fly larvae. 

 1 Pelogonus marginatuf- 

 1 Hyphoporus ap c r. 

 1 Dytiscid. 

 Several broken elytra (Dytispids ?> (4 spms.) 



1 Moth's antenna. 



2 Tabanidae. 

 1 Museidae. 



1 Small fish, 

 1 Prawn. 

 -t-09. 5 Trithemis pallidinervis. 



9 Plalygomphus dolobratus. 

 12 Zygopterids. 



One blade of grass or water weed. 

 7-9-08. 3 Trilhemis pallidinervis, 



Summary. Of 76 insects taken by 4 birds, 52 are beneficial, 

 14 injurious, and 10 neutral, 3 birds took beneficial insects, 2 

 in]urious and 2 neutral, 1 contained a fisu, and a prawn, and 

 another a blade of grass. 



1567. Butorides javanica. Little Green Heron. Crabs and 

 other food. Jerd. B. I. Ill, 753. Crabs, frogs, small fish, &c. 

 F. I. IV, 396. 



1568. Nycticorax griseus. Night Heron. Fish, frogs, &c. 

 F. I. IV, 398. 



1569. Gorsachius melanolophus. Malay Bittern. Feeding at 

 night on fish, crabs, worms, &c. F. I. IV, 399, 



