1910] Grinnell—Birds: Alaska Expedition, 1908. 373 
The four adults taken measure as follows: 
Locality Bill from No. Tail 
No. Sex and Date Wing Tail Tarsus Culmen Nostril Feathers 
1130 g¢ Hawkins Id., 
June 18 457 165 83.8 48.0 25.4 18 
11382 9 Hawkins Id., : 
no date; 
headionlivarrs Us.ce5 © ceite hee 45.3 24.0 
1133 g Head of Cor- 
dova Bay, 
June 10 437 156 83.6 47.9 23.1 14 
1129 9 Hawkins Id., 
June 18 396 148 69.6 41.1 21.1 16 
Two adult males from Admiralty Island (Sitkan District) 
previously referred by me to occidentalis (Univ. Calif. Publ. 
Zool., V, p. 199), have 18 tail-feathers each. Neither the Prince 
William Sound nor the Sitkan examples have any trace of ‘‘ white 
collar around lower neck,’’ this being emphasized by Coues and 
Ridgway as a character of occidentalis. Also, the white cheek 
patches are completely confluent across the throat, though in one 
example there are median extensions of black mottling along the 
midthroat which nearly meet. 
The Prince William Sound geese are still darker, even, than 
the Sitkan district birds, with abruptly white belly and crissum. 
They thus differ from canadensis and hutchinsi, and resemble 
minma. But they lack entirely the white collar of the latter. 
It will be noted from the accompanying table of measurements 
that the Prince William Sound birds are decidedly smaller than 
the Sitkan district examples, the former being in this respect 
intermediate between the type of occidentalis and minima, but 
nearer the latter. Taking both coloration and size into account, 
the systematie status of these birds is decidedly unsatisfactory. 
I am using the name occidentalis for them only as a makeshift. 
A revision of the geese of the canadensis group, based upon ex- 
tensive material, is much needed. 
Ardea herodias fannini Chapman. Northwestern Blue Heron. 
Miss Alexander obtained an adult male of the northwestern 
blue heron at Canoe Passage, Hawkins Island, June 22 (no. 
1119), which is characterized by extremely dark coloration, prac- 
tically identical with that of adults from the Sitkan district. 
