1 7 6 



It would hardly be supposed that a Perch of 

 two or three inches long with its prickly fin 

 would be a pleasent mouthful for a young bird of 

 this age ; the smaller specimen however contained 

 a couple of fish of that length, while the larger had 

 only a few feathers in its stomach. 



The old and young were obtained on Hickling 

 Broad in June, 1873. 



GREAT CRESTED GREBE. (IMMATURE). 

 Case 256. 



The specimens in this case are probably from 

 ten to twelve weeks old. 



While in the down the eye of this species is a 

 light grey. During their first autumn and winter 

 I have observed the iris both a dull orange and a 

 bright lemon yellow ; this gradually changes till it 

 assumes the brilliant red which is seen in the adult 

 in summer. 



The birds were shot on Breydon near 

 Yarmouth in September, 1871. 



BLACK TERN.- (AUTUMN). 

 Case 257. 



The old birds showing the change into winter 

 plumage, and the young in their first feathers, are 

 occasionally observed in this country as early as 

 July ; but it is not till August and September that 

 we are visited by the main body while on their way 

 to their winter quarters. 



The specimens in the case were shot on 

 Hickling Broad in the beginning of August, 1873. 



GREEN WOODPECKER. (MATURE AND 

 IMMATURE). 



Case 258. 

 The hissing and snapping noise emitted by a 



