1910] The Ottawa Naturalist. 157 



thus migrate to their doom with such persistency is difficuh to 

 explain. Many are, of course, also shot by gunners. 



Order Longipennes Long-winged Swimmers, 

 stercorariid^ skuas and jaegers. 



9. Stcrcorarius parasiticus, Parasitic Jaeger. Another ma- 

 rine species of the north which can only be a rare accidental 

 visitor here. A young bird was shot on September 4th, 1909, on 

 the Ottawa, near the mouth of the Lievre River, and is now in 

 the writer's collection. 



LARID.-E GULLS AND TERNS. 



10. Larus hyperhoreus , Glaucous Gull. This arctic species 

 has been but lately added to the Ottawa list. On December 2nd, 

 1905, Mr. E. Bedard of the Rifle Range shot the first specimen. 

 He claims that this species forms a part of the enormous flights 

 of gulls and terns moving regularly up and down the river. 

 They are easily distinguished from the Herring Gulls. Other 

 dates of Mr. Bedard are: March 26th, 1907, eleven seen; April 

 5lh, 10th, and 12th, 1908, and March 31st, 1909. 



11. Larus niarinus, Great Black-backed Gull. A casual 

 visitor. May 2nd, 1885, one was seen near Kettle Island 

 (G. White); also one at the samic place April 9th, 1906, by the 

 v>riter. 



12. Larus argeniaius, Herring Gull. This fine bird is a 

 moderately com.mon breeder here and a sometimes abundant 

 mig"ant. The bulk come at end of March and beginning of 

 April, the earliest date being March 26111, 1904. The species 

 breeds along the Ottav/a in suitable localities and on the lakes 

 northward. The bird has been seen here as late as December 

 7th (1907). 



13. Larus delawarensis, Ring-billed Gull. This common 

 Species of the Great Lakes and the sea coast undoubtedly has 

 always been among the hosts of migrant birds passing up and 

 down the Ottawa, still the first definite record of it for Ottawa 

 was only made in Decern ler, 1908, when Mr. E. Bedard captured 

 one alive. He kept it with several ducks in a sm.all enclosure, 

 where it developed an unsuspected amount of viciousness in 

 attacking, killing and then eating his fellow-captives. 



14. Lariis Philadelphia, Bonaparte's Gull. This is a not 

 uncommon migrant, which in early May is sometimes found in 

 numbers over the river. It probably nests on some of the lakes 

 not far north of here, as young birds are found here in August. 

 Earliest and latest dates are: May 2nd (1908), and October 7th 

 (1907) 



15. Sterna hirimdo, Commion Tern; Wilson's Tern. A 

 casual visitor and probably a more common regular migrant 



