1911] The Ottawa Naturalist. 185 



128. Colaptes auratus luteus, Northern Flicker. This large, 

 handsome woodpecker is a common or even abundant summer 

 resident, apparently increasing in numbers. The eariiest date 

 of arrival is March 26th (1907), but the bulk arrive from the 5th 

 to 21st of April. Those which breed locally leave by about 

 September 9th, but migrants from farther north continue to pass 

 through till September 30th. A pair had their nest in a hole in 

 a trolley pole at one of the entrances to the Rifle Range, from 

 which a total of 60 eggs were gradually taken, but nothing 

 daunted, they finally brought out their brood of young. 



Order Macrochires Goatsuckers, Swifts, etc. 

 caprimulgid^ goatsuckers. 



129. Antrostomus vocijerus, Whip-poor-will. A moderately 

 common summer resident. It arrives in the first part of May, 

 April 29th, 1908, being an exceptionally early date; the last are 

 usually heard September 16th, but in 1909 one tarried until 

 October 16th (G. R. White). 



130. Chordeiles virginianus, Nighthawk. An abundant 

 summer resident. It breeds on many of the flat roofs in the city 

 and therefore may be seen any day performing its wonderful 

 aerial evolutions overhead. It is also remarkable for the regu- 

 larity of its coming and going, it arriving usually May 16th 

 (sorne years May 11th), and departing about August 23rd, when 

 large numbers are seen over or near the city. For an account of 

 its nesting on a residence in the city see The Ottawa Nat- 

 uralist, vol. XIX., p. 56. 



MICROPODID^ SWIFTS. 



131. ChcBtura pelagic a, Chimney Swift. An exceedingly 

 abundant summer resident. Flocks of hundreds may be seen 

 nearly every evening in summer whirling over and into the large 

 ventilator shafts and chimneys of the Parliament, and depart- 

 mental, buildings, and of some of the public schools. The date 

 of their arrival varies with the meteorological conditions of the 

 seasons, the earliest date being April 22nd (1897), and the latest 

 May 10th; they leave at the end of August and beginning of 

 September (10th last date). In 1883 a live Swift was captured 

 during the first week of February in the house of the late Dr. 

 Whiteaves. 



TROCHILID^ HUMMINGBIRDS. 



132. Archilochus colubris, Ruby-throated Hummingbird- 

 A common summer resident. They arrive during the middle of 

 May, the 9th being the earliest date, and leave about the middle 

 of September (9th to 14th). In 1909, however, owing to the 

 unusually mild autumn one was seen as late as October 16th 

 (G. R. White). 



