BRITISH BIRDS 



round and about the steeples and buildings : they show a marvellous power in 

 guiding and controlling their flight, at times moving with rapid beats of their 

 wings, then again gliding in long sweeps and curves. Their energy appears to be 

 untiring, and they do not seem in any way affected by heavy rain. 



During the long days they are capable of remaining on the wing from early 

 morning till dark, and towards evening, when the young are able to look after 

 themselves, the birds may be seen circling at an incredible height ; whether for 

 recreation or after their food, which consists entirely of insects, it would be difficult 

 to say. 



It has been stated and is a common belief that owing to its great length of 

 wing the Swift is unable to rise from a flat surface, but this has been proved 

 to have no foundation in fact, from the observation of competent authorities. 

 When they first arrive, Swifts are in the perfection of plumage, with a beautiful 

 gloss on their feathers, but before they leave us they become faded and bleached. 

 The sexes are alike in colour. 



The Swifts have now been entirely separated by naturalists from the Swallows 

 and Martins, as it has been proved that they have no relation whatever to 

 these birds. 



The foot of the Swift is of peculiar construction, having the four toes, which 

 are short and strong, all directed forwards, and the tarsus very short and feathered 

 in front. This formation enables the bird to cling with great ease to the rough 

 surface of a wall or rock when alighting at the nest. 



