. A popular handbook of the ornithology of the United States and Canada, based on Nuttall's Manual . t the middle of August they begin their migrationstowards the south, on which occasion they may be seen in theevening moving in scattered flocks consisting of several hun- NIGHTHAWK. 473 dreds together, and darting after insects or feeding leisurely asthey advance towards more congenial climes. For two orthree weeks these processions along the rivers and their banks,tending towards their destination, are still contmued. Mingledwith the wandering host are sometimes also seen the differentspecies
. A popular handbook of the ornithology of the United States and Canada, based on Nuttall's Manual . t the middle of August they begin their migrationstowards the south, on which occasion they may be seen in theevening moving in scattered flocks consisting of several hun- NIGHTHAWK. 473 dreds together, and darting after insects or feeding leisurely asthey advance towards more congenial climes. For two orthree weeks these processions along the rivers and their banks,tending towards their destination, are still contmued. Mingledwith the wandering host are sometimes also seen the differentspecies of Swallow, — a family to which they are so much alliedin habits and character; but by the 20th of September thewhole busy troop have disappeared for the season. I have observed Nighthawks flying over the city of St. John, inNew Brunswick, during most of the summer months, and haveknown of the eggs being found frequently on gravel roofs in thatcity. Note. — The Florida Nighthawk (C virginiamis chap-mani), a smaller race, has been discovered breeding at TarponSprings, Florida. END OF VOL. BOSTON UNIVERSITY
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