BIRDS OF ONTARIO. 25 
In the autumn it is generally fairly abundant in most parts of the 
country, visiting the newly ploughed fields, the muddy flats of marshes 
and the sand bars of the lakes. 
It arrives from the north towards the end of August and departs 
about the middle of October. 
Breeds in the Arctic regions. 
Genus ANGIALITIS. 
SUBGENUS OXYECHUS. 
116. Killdeer. 
(Aigialitis vocifera.) 
A common summer resident, generally distributed over the Pro- 
vince, breeding through its range. 
Arrives about the end of March, departs early in October. 
SuscENus AIGIALITIS. 
117. Semipalmated Plover. 
(Aigialitis semipalmata. ) 
Common in spring from about the middle of May to the end of 
first week in June when it goes north to breed. In July they return 
and are again abundant until the end of September, sometimes remain- 
ing even later. 
118 Piping Plover. 
_ (Agialitis meloda.) 
A regular, but not a common summer resident. 
They arrive early in May and probably leave as soon as the young 
can fly as I have never found them in autumn. 
119. Snowy Plover. 
(Mgialitis nivosa.) 
Only two specimens have been taken in the Province to my know- 
ledge. 
Famity APHRIZIDA. TuRNSTONES, ETC. 
SUBFAMILY ARENARIINA. TURNSTONES. 
GENUS ARENARIA. 
120. Turnstone. (Redshank.) 
(Arenaria interpres.) 
Very abundant at some points along the lake shores in spring, 
arriving about the twenty-fifth of May and remaing until the middle 
