SWIFT. 



CYPSELUS APUS {Linn.}. 



Hirundo apus, Linn. S. N. i. p. 344 (1766). 



Cypselus apus^ Naum. vi. p. 123; Yarr. ed. 4, ii. p. 364; 



Dresser, iv. p. 583. 

 Cypselus murarius^ Macg. iii. p. 614; Hewitson, i. p. 267. 



Martinet de muraille, French ; Thurmsegler , German ; 



Avion, Vencejo, Spanish. 



A more or less common summer visitor to all parts 

 of the British Islands. 



