t Bulletin 

 Princeton 

 Bird Club 



Gray's Mill, but since that time the species has occurred only as a 

 migrant during May, in spring and in fall, from August lo until Sep- 

 tember 10. 



155 (613)- Barn Swallow. Hirundo erythrogaster 

 {Bodd.). 



A common summer resident, but much less so than formerly. At 

 Princeton the eggs are laid during the second week in May, and two 

 broods are reared. The birds arrive about April 10 and remain until 

 September 25. 



156 (614). Tree Swallow; White-bellied Swal- 

 low. Tachycineta bicolor {VieilL). 



A common migrant and rare summer resident. Arriving from the 

 south before any of the other swallows, March 20, as a rule this species 

 passes on to more northern breeding grounds. Occasionally, however, 

 a few pairs remain to breed, for on June 16, 1900, Prof. Phillips found 

 three pairs nesting in a dead tree on the Millstone. The young were 

 probably hatched as the old birds were carrying food. This same tree 

 was again used in 1901. The return migration takes place during 

 August, September and October, but rarely in the immense numbers 

 which one sees on the coast. 



157(616). Bank Swallow. Clivicola riparia (Zz«?«.). 



A not uncommon migrant and infrequent summer resident. A few 

 pairs still breed every year in mud banks near Kingston, the eggs being 

 laid as a rule by June i, but aside from these I know of no colonies that 

 remain for the summer. The birds arrive about April 18, and remain 

 until September 25. 



158 (617). Rough-winged Swallow. Stelgidopteryx 

 serripennis (Aud.). 

 Two or three pairs of these birds spend the summer near every 

 mill or stone bridge on the Millstone. After arriving, which takes place 

 the third week in April, they at once choose a suitable nesting site, gen- 

 erally a chink between the stones of a bridge or quarry, but often on a 

 beam under a mill, or occasionally in a deserted Kingfisher's hole, and 

 always near water. The nest is frequently started as early as May i, 



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