152 BIRD LIFE THROUGHOUT THE YEAR 



shelter of overhanging ledges in the thick of the sea- 

 bird colony, just as they do on many a limestone cliff 

 inland, as in Derbyshire or West Yorkshire. Such 

 must have been the original nesting haunts of the 

 species as a whole until, with the advent of house- 

 building man, a large proportion of them . came to 

 utilize his eaves. The list of these associates and 

 allies might be extended — we have found a corncrakes' 

 nest Upon a lonely islet amongst the terns' eggs, which 

 lay so thickly that it was impossible to avoid treading 

 on them — but those which have been mentioned are 

 the most ordinary supernumeraries in scenes where the 

 sea-birds themselves play the chief part. 



CALENDAR FOR JULY. 



July ist. — Young Partridges flying. 



2nd. — Redshanks flocking. 



3rd. — Young Kingfishers still in the nest. 



4th. — Some young Lapwings but newly-hatched. 



5th. — Most Cuckoos silent. 



7th. — Young Blackbirds of late brood leave the nest. 



8th. — Young Robins of late brood leave the nest. 

 10th. — Young Kestrels still in the nest, 

 nth. — Young Herons perching close to nest. 

 12th. — Sedge Warbler still has eggs. 



Young Red-backed Shrikes leave the nest. 

 13th. — Young Sparrow-hawks still in the nest. 



