36 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 144 



Table 13. — concluded 



Wing-beat 

 rate 

 sec-1 



Wing length 

 mtn. 



Great crested grebe 



Great northern diver 



Fulmar 



Manx shearwater 



Wood pigeon 



Rock pigeon 



Ringed plover 



Golden plover 



Lapwing 



Turnstone 



Red shank 



Ruff 



Oystercatcher 



Curlew 



Snipe 



Greater black-backed gull 

 Lesser black-backed gull .. 



Herring gull 



Common gull 



Black-headed gull 



Kittiwake 



Sandwich tern 



Puffin 



Guillemot 



Black guillemot 



Coot 



Pheasant 



Capercailzie 



Table 14. — data from earl l. poole, auk, 

 VOL. 55, pp. 511-517(1938) 



Weights and wing area of 143 species of North American birds 



Poole's table is arranged in order of ascending weights and I have retained 

 this format, although it might have been better to group the birds in accordance 

 with families and genera. 



The wing areas are for both wings. 



Poole did not give wing-length measurements. These have been taken principally 

 from Ridgway's "Birds of North and Middle America" and Forbush's "Birds of 

 Massachusetts and other New England States." The measurements for Sthene- 

 lides olor and Columba I. livia were taken from Witherby's "Handbook of 

 British Birds." 



Ridgway's measurements were made with dividers, one point resting against 

 the anterior side of the bend of the wing, the other point touching the extremity 

 of the longest primary. The value given in the table is the average either as 

 reported by Ridgway or obtained by averaging the values given for the extremes. 



