1911-12.] Body Temperature of Diving and Swimming Birds. 27 
Table I. — Records of Body Temperature of some Diving- and Swimming Birds 
TAKEN IN THE ORKNPJY ISLANDS AND FlRTH OF FORTH, SCOTLAND, CAYUGA LAKE, 
N.Y., U.S.A., AND IN THE NORTH ATLANTIC (MlD-OCEAN). 
In the Orkney Islands. 
Rectal 
Temperature. 
Temperature 
of Air. 
Temperature 
of Water. 
December 25, 1903, 12.30 to 2 p.m. . 
o 
- 2°0 C. 
6°5 C. 
Shag ( Phalacrocoras graculus ) . 
39-9 C. 
Cormorant ( Phalacrocoras carbo) 
40-2 
Black guillemot ( Uria grylle ) . 
41T 
April 20, 1904, 2 to 4 p.m 
Shag 
40*4 
„ ....... 
40T 
„ ....... 
39-4 
39-5 
Sea-gull ( Larus canus) . . . 
41-6 
September 13, 1905, 1 to 5 p.m. 
Shag 
39-4 
„ ? 
40 Y 
„ ? • 
40-3 
„ ....... 
39-5 
,, ....... 
39-8 
,, ....... 
39-7 
Common guillemot ( Uria troile ) £ . 
41-2 
33 35 3) 5 • 
40Y 
33 33 33 $ ■ 
40-8 
Black „ {Uria grylle) $ . 
40-1 
33 33 33 ^ * 
411 
° 
33 33 33 ? • 
40-8 
September 16, 1905, 3 to 6 p.m. 
13 
12-1 
Sea-gull {Larus canus) . . 
41-9 
33 33 .... 
42*1 1 
Kittiwake {Rissa tridactyla) 
41-4 
Cormorant ...... 
38 9 
,, ...... 
392 
Shag . 
39-6 
55 ....... 
39-8 
55 ....... 
40-4 
n • • • 
40-2 
Common guillemot 
40-5 
Black ,, 
40-7 
55 55 
39-9 
55 55 
41-1 
September 9, 1907, 12 to Z p.m. 
15 
11-4 
Shag ^ 
40-9 
3, d 
39-6 
33? 
39-8 
39-6 
; 5 • ..... 
39-8 
55 ....... 
40-8 
1 
