164 



U. S. NATIONAL MUSEUM BULLETIN 217 



Yukon near the time of arrival at Johnson Creek and suggests that 

 different populations provide the first arrivals at Old Crow and 

 Fort Yukon. 



We have assembled four specimens of Canada geese from Anaktuvuk 

 with Delacour and Zimmer (1951) ascribed to the range of B. c. 

 tavemeri^ and also two specimens collected on Colville Eiver by Cade 

 and Schaller. The latter were on their breeding ground and the former 

 were migrants collected while 150 miles south of Colville. We have 

 also a specimen taken by Hughes and Chamberlain at College, Alaska, 

 May 7 with largest ova 22 mm. The two specimens from Old Crow 

 conform with the seven from central northern Alaska and differ 

 from four specimens regarded as B. c. farvipes^ taken in May near 

 Lake Athabasca, Alberta, and one from the site of Old Fort Good 

 Hope on Mackenzie Eiver. Their measurements are shown in table 3. 



Table 3. — Dimensions of Branta canadensis parvipes and Branta canadensis 



tavern eri 



Date 



Sex 



Locality 



Measurements of culmen ( 



mm.) 



Testis 

 or egg 

 (mm.) 



Weight 





Wing 



NaU 



Length 



Depth 



(g.) 





cf 



PARVIPES 



May 26 



Lake Athabasca 



411 



12 



40 



20 







May 26 



9 



Lake Athabasca 



409 



12.5 



36 



18 







Jun 28 



d' 



Old Fort Good Hope 



432 



13 



42 



22 







Jul 3 



& 



Athabasca Delta 



420 



13 



45 



21.5 







Oct 6 



9 



Lake Athabasca 



410 



12.5 



43 



21 









TAVERNERI 



May 7 



College 



389 



12 



37 



20 



22 



2688 



May 18 



& 



Anaktuvuk 



422 



11.5 



33 



22 



6 





May 18 



9 



Anaktuvuk 



400 



13 



35 



19 



22 





May 19 



cf 



Anaktuvuk 



405 



12 



35 



20 



22 



2551 



May 20 



9 



Anaktuvuk 



373 



11 



36.5 



19 







Jun 6 



9 



Old Crow 



390 



11 



39(?) 



19(?) 



16 



1741 



Jun 10 



9 



Colville 



394 



9 



31 



19.5 



9 



2250 



Jun 19 



9 



Old Orow 



412 



11 



39 



21.5 



5 



2219 



Jun 20 



9 



Colville 



387 



10 



30 



18.5 



6 



2260 



> Laid. 



The geese listed as taverneri have the small nail and short bill 

 characterized by Delacour. Since the bill is as deep at the base as that 

 of the longer billed geese, the angle formed by the top and bottom 

 of the mandible is relatively steep. The breast of taverTieri is generally 

 darker, forming a sharper contrast with the white belly. The back 

 of taverneri is darker. It is especially dark at the transition from 



