the young I have also noticed being hatched at 

 similar intervals. 



The specimens in the case were obtained on 

 Hickling Broad in June, 1871. 



WHITE- WINGED TERN. 

 Case 251. 



The five Terns in the present case formed part 

 of a flock of seven that I met with on Hickling 

 Broad. 



They were first observed hawking for flies over 

 the water in company with the Sand Martins, and 

 having previously obtained as many as I required 

 as specimens, I had a good opportunity of watching 

 their habits. 



They appeared quite fearless, occasionally 

 approaching and hovering within a few feet of the 

 boat ; though the water was shallow and small fry 

 abundant they never attempted to capture a single 

 fish, frequenting only those parts of the Broad 

 where the Sand Martins were seen, both species 

 taking their food in precisely the same manner. 



Toward dusk, as I found the Martins were 

 leaving, I rapidly procured the Terns, the sixth 

 falling dead to a long shot in the middle of a reed- 

 bed where it was useless to search, and the seventh 

 after having for some minutes complacently watched 

 the slaughter of his companions took his departure 

 without offering a chance. 



On the following days there were again small 

 flocks on the Broads, those seen latest appearing 

 to be younger birds, their breasts being strongly 

 marked with white. * While the weather was cold 

 and windy they pursued their course straight away 

 to the north-east ; those however that were seen 

 when the sun had brought out the insects and 



* In the immature bird the breast is white. 



