48 ROCHESTER ACADEMY OF SCIENCE. 



604. Spiza americana (Gmel. ) Dickcissel. 



Accidental summer visitant. Small flock seen at Tully in 1 883 

 A. W. Perrior. 



Family TANAGRIDAE. Tanagers. 

 608. Piranga erythromelas Vieill. Scarlet tanager. 



Summer resident ; fairly common in woodlands. May 7 Sept. 

 30. Nest, on a horizontal limb 10-50 feet from the ground, May 20 

 June 15 ; eggs, 3-4. 



610. Piranga rubra (Linn.) Summer tanager. 



Summer visitant ; accidental. Two birds of this species recorded 

 at Olean by Mr. W. V. Smith. 



Family HIRUNDINIDAE. Swallows. 



611. Progne subis (Linn.) Purple martin. 



Summer resident ; fairly common about towns and cities. Apr. 

 1 8 Aug. 30. Nest, in martin boxes or about the cornices of tall 

 buildings ; May 15 June 20. This species is diminishing in num- 

 bers, due to the occupation of its nesting sites by the English spar- 

 rows. Beneficial like all the swallows. 



612. Petrochelidon lunifrons (Say) Cliff swallow. 



Summer resident ; common. Apr. 24 Sept. 8. Nests, almost 

 invariably in the eaves of a large barn, in communities of 5-100 ; 

 May 14 July 10 ; eggs 4-5 ; sometimes two broods. Before the 

 autumn migration this species and the barn swallow, together with a 

 few of other species, gather in countless numbers at chosen spots to 

 roost in low willows. Near Springville is such a swallow roost. It is 

 most populous about Aug. 20. The birds gather at sunset and scat- 

 ter again at daybreak. 



613. Hirundo erythrogaster Bodd. Barn swallow. 



Summer resident ; abundant. Apr. 15 Sept. 12. Migrates 

 mostly by day. Frequents barns and sheds. Nest, on beams or 

 rafters, sometimes under the eaves ; May 5 July 30 ; two broods ; 

 eggs 4-6. 



614. Tachycineta bicolor (Vieill.) Tree swallow. 



Summer resident ; fairly common. Apr. 2 Sept. 28. Often 

 abundant in April and September. Migrates by day in large companies. 



