1924] Swarth: Birds and Mammcds of the SkeenaBiver Region 371 



pallasi has been reported as breeding at Lac La Hache, British 

 Columbia (Rhoads, 1893, p. 58), and as migrating at Quesnelle 

 (Brooks, 1903, p. 284). 



Planesticus migratorius migratorius (Linnaeus). Eastern Robin 



Found everywhere in the lowlands; absent from the dense woods 

 of the middle altitudes on the mountains, but reappearing in the open 

 country above timber. When we reached Hazelton, May 26, robins 

 were already sitting on eggs. The first young out of the nest appeared 

 on June 16 ; by July 1 spotted young were about in numbers. During 

 the second and third weeks in August there was a notable scarcity of 

 robins; by September 1 an influx of migrants had set in, and soon 

 they were as numerous as ever. During the third week in September 

 the southward exodus was in full swing. Day after day migrating 

 flocks of robins trailed overhead, in loosely assembled companies and 

 flying at a great height. There were a good many still around though, 

 up to the time of my departure, September 26. 



Eighteen specimens collected (nos. 42610-42627) : six breeding 

 adults (four males and two females), seven birds in the spotted 

 Juvenal plumage or in the post-juvenal molt, two adult males in fresh 

 winter plumage, and one male and two females in first winter plumage. 



I have ascribed this series to the subspecies migratorius, the form 

 to which on the whole it bears closest resemblance, but there is con- 

 siderable individual variation, with obvious intergradation toward the 

 coastal subspecies caurinus. It might be that further collecting would 

 show such intergradation to be mostly in breeding birds from this 

 region, while September migrants, presumably from more northern 

 points, are closer to typical migratorius. However, spotted young 

 from the Hazelton region are more nearly like young migratorius than 

 like caurinus at the same stage. 



Ixoreus naevius naevius (Gmelin). Varied Thrush 

 Ixoreus naevius meruloides (Swainson). Northern Varied Thrush 



One family of varied thrushes was found in a lowland locality, in 

 Kispiox Valley. They were in a grove of huge cottonwood trees border- 

 ing the Kispiox River, a dark, gloomy place, grown up underneath the 

 trees with an impenetrable tangle of devil's-club, thimble-berry, and 

 alder, in appearance just such a jungle as this thrush frequents on the 

 coast. Here, on June 22, a brood of young, out of the nest, were being 

 attended by their parents. The old male was collected (no. 42628). 



