26 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 124 



subspecies "munroi." Ripley (1964) has considered this name a 

 synonym of nanus but, according to the present study, both the 

 type-locality of munroi (Nulki Lake in central British Columbia) 

 and that of euborius (Lewes River in south-central Yukon) are in 

 the range of hermit thrushes having similar morphological characters 

 quite different from coastal birds. Also, since the original description 

 of munroi and a specimen taken at Nulki Lake on May 18, examined 

 in the present study, fit well with the characters of this population, 

 it appears that munroi must be considered a synonym of euborius, 

 the older name. 



Two specimens taken on May 20 and one in May without specific 

 date at Fairbanks, Alaska, have characters that fit euborius. Although 

 these specimens probably were not breeding at that time, on the 

 probability that they would nest in that general area, the range of 

 euborius is considered to extend northwestward to that point on the 

 Tanana River in central Alaska. 



Breeding specimens from Tupper Creek and Charlie Lake in north- 

 eastern British Columbia, also Banff, Jasper Park, and Grimshaw in 

 southern Alberta, are somewhat intermediate toward faxoni, but are 

 closer to euborius in pale coloration and grayishness of flanks. Other 

 investigators, including Munro and Cowan (1947) and Rand (1948), 

 have assigned specimens from these same areas to faxoni. These facts 

 indicate that the area of intergradation between euborius and faxoni 

 is a broad one in those regions. 



9. Eastern hermit thrush: Catharus guttatus faxoni (Bangs and 

 Penard). — Medium shade, Saccardo's Umber to Cinnamon Brown. 

 Medium size, long tarsus; cf (55 specimens), wing 89-100 (93.5), 

 tail 64-79 (68.5), culmen 12.5-15 (13.6), tarsus 28-32.3 (29.7), midtoe 

 15-18.5 (17.2); 9 (22 specimens), wing 84-94.5 (89.2), tail 60-70 

 (65.0), culmen 13-15 (13.8), tarsus 27.5-31 (29.3), midtoe 15-19 

 (16.9). 



Longer bill and tarsus, darker and more rufescent than euborius; 

 shorter wing, longer tarsus, and more rufescent than auduboni and 

 seguoiensis; paler than crymophilus; larger and more rufescent than 

 oromelus, vaccinius, and guttatus; larger, paler and more rufescent 

 than nanus. 



Breeds from south-central Mackenzie, extreme northeastern British 

 Columbia (?), and central-eastern Alberta east to central-western 

 Quebec, Nova Scotia, southeastern New York, and the northern 

 Appalachian Mountains. 



Winters in eastern and central-southern United States from New 

 York State (Highland Falls) south to Florida (Jacksonville and 

 Enterprise) and west to Oklahoma (Tulsa) and Texas (San Antonio, 

 Hidalgo, Navasota, and Fort Clark). 



