50 TRANSACTIONS OF THE CANADIAN INSTITUTE. [VOL. III. 



been secured, and flocks of Sandpipers were noticed about their usual 

 haunts, and then for about a month they almost disappeared and very 

 few specimens were seen. 



Larus Philadelphia.— On August 4, while returning from Port 

 Credit, I secured two Bonaparte's Gulls, out of a large flock that were 

 standing on pieces of floating wood in Humber Bay. 



August 20. — I received a large Ring-billed Gull, Larus delawarensis, 

 and a Pectoral Sandpiper, Tringa maculata, shot on Ashbridge's Bar. 



Nycticorax nycticorax nsevius- — On August 27, I secured a 

 Night Heron, on Ashbridge's Bar. It was a female in the young 

 plumage, but had evidently been incubating from the appearance of the 

 skin on the belly. On the same date, I also secured a Marsh Hawk 

 Circus Jiudsonius, at the same place. 



On September 13. — I observed several of the Swallows, principally 

 Chelidon erythrogaster, and Tacliycineta bicolor, with a few specimens 

 of Clivicola rtparia, still frequenting the Bar. Mr. Loane informs 

 me that the Swallows and Blackbirds do not migrate at night, and 

 mentions that on several occasions while he was lying in the rushes, 

 he saw them rise up just at daybreak, and circling round at a great 

 height in the air, they- would strike off in a straight line south ; and in 

 the spring he has seen immense flocks of these birds arrive and settle 

 in the rushes between six and nine o'clock in the morning. 



September 15. — I collected two Black and White Warblers, 

 Mniotilta varia, one Pine Warbler, Dendroica vigorsii, and one Ten- 

 nessee Warbler, Helminthopliila peregrina, and a female Sharp-shinned 

 Hawk, Accipiter velox. 



September 1 7- — Received two Golden Plover, Charadrius dominions, 

 from Ashbridge's Bar. 



September 20. — In Rosedale to-day, I collected one Nashville 

 Warbler, Helminthophila ruficapilla, and one Blue-headed Vireo, Vireo 

 solitarius. 



September 20. — I received one Buff-breasted Sandpiper, Tryngites 

 subruficollis, one Baird's Sandpiper, Tringa bairdii, one Bonaparte's 

 Gull, Larus Philadelphia, and one Greater Yellow-leg, Totanus ntelan- 

 oleucus, from Ashbridge's Bar. — J. R. THURSTON. 



Totanus flavipes. — On August 7, I secured three species of the 

 Lesser Yellow-leg, on Ashbridge's Bar. 



Fall migrations begun — On September 7, I noticed the first sign 



