103 
snow; a few were on mossy, tundra upland in the vicinity of streams and 
pools. The species was much more numerous here than in any part of 
Baffin island previously visited by the writer. On June 28 a set of four 
eggs, somewhat incubated, was taken on one of Fox islands, Gordon bay. 
The first young of the season, possibly two days old, were seen on July 13 
at cape Dorset, Two adults and a brood of young were observed at 
Amadjuak bay on August 7. The species was not noted during the 1923 
Canadian Arctic Expedition. 
A large series of skins was collected. Measurements of the eggs col- 
lected are as follows: 
No. 1871 
No. 1872 
No. 1875 
No. 1876 
Mm. 
Mm. 
Mm. 
Mm. 
33-5— 23 
34 — 23-5 
32 — 24-5 
36 — 24-5 
33 — 24 
32-5— 24 
32 — 24 
34-5— 25 
32-5— 24 
32-5— 24 
33 — 24 
34 — 24-5 
34 — 24 
33 — 24-5 
34 — 24 
Kumlien (1879, p. 83) records the species as being not rare, and as 
breeding about Cumberland sound. First recorded by Hantzsch (1914, 
pp. 156-157) under the name Aegialitis hiaticula semipalmata (Bp.), on 
June 20, 1910, near Amittok lake. He frequently observed the species 
at Isoa, eastern part of Nettilling lake, in late June. Specimens and eggs 
were collected by the MacMillan expedition to southwest Baffin island, 
1921-22. 
62. Charadrius hiaticulus (Linnaeus), ringed plover. 
On the 1923 Canadian Arctic Expedition the ringed plover was seen 
only at Ponds inlet, Baffin island, where on August 29 two individuals were 
collected near Salmon river. Though very many specimens of the semi- 
palmated plover were collected 1924-1926, not one example of the present 
species was taken. This is radically different from Kumlien’s experience 
in Cumberland sound in 1877-1878. 
Regarding this species Kumlien (1879, p. 83) says: 
"I am not aware that this species has hitherto been introduced into the North American 
fauna, though long known as a common bird on the Greenland coast, where semipalmata 
is rare. It is apparently more common than the preceding in Cumberland. Arrives 
about the same time, and breeds in similar localities.” 
Hesse (1915, p. 169), giving an account of work by Hantzsch, lists a 
male, adult specimen from Blacklead island, Cumberland sound, summer, 
1906, and states that Hantzsch did not collect this specimen himself, but 
“obtained it somewhere.” 
As several writers have failed to note the difference between the feet 
of this and the preceding species, it may be well to point out that hiaticulus 
has a web between the outer and middle toes, whereas semipalmatus has a 
large web between the outer and middle toes, and a smaller web between the 
middle and inner toes. 
