614. Iridoprocne bicolor 

 TREE SWALLOW. 6 inches 



Male and Female alike. Above metallic green. Below clear 



white ; tail slightly forked. 



Also called White-bellied Swallow. Ar- 



rives in Massachusetts the first week 



in April. 



Note. A twittering. 



Nest. In holes in trees or in bird boxes. 



Breeds. Locally throughout] New 



England. 



68 



