1 06 NORTH AMERICAN FAUNA 76 



nest at Round, Summit, Crcx)ked, High, and Hagemeister islands in 1977 

 (P. D. Ameson and D. B. McDonald, personal commimication). 



Singing or scolding birds were found mainly in two different bio- 

 types: at the edges of birch and some spruce woods with either dwarf 

 shrub mat terraces or open riparian spruce-cottonwood (90-180 m asl); 

 and at the interface between upper edges of subalpine alder-willow 

 shrub and dwarf shrub mat (90-250 m asl along the coast; 370-750 m asl 

 inland) on steep, rocky slopes with discontinuous cover. Only 1 pair 

 (0. 1 pair per square kilometer) was found in disturbed riparian woodland 

 at the Tuluksak River in 1983. In undisturbed birch woods on south-fac- 

 ing slopes elsewhere, singing males seemed to be spaced roughly 

 100-200 m apart. 



A nest near Goodnews was on a southwest-facing rock outcrop 

 (240 m asl) near the summit of a steep coastal hill. It was about 30 m 

 above the main edge of low alder shrub in dwarf mat shrub with scattered 

 alders, grasses, and dwarf willow. The nest site was in a tussock at the 

 base of a large rock crevice. The nest contained four eggs with embryos 

 about two-thirds developed 19 June 1974. Singing hermit thrushes were 

 common at Cape Peirce at vegetated sea slopes from 1 1 June to 1 6 July 

 1970; none were seen or heard there in 1973 and 1976. We saw a pair 

 copulating at Pyrite Point on 11 June 1973- 



American robin (Turdus niigratorius). Csr (2 April-25 August). 

 Specimen: RMS 1962/36/3 5. 



Robins nested in the northern Kilbuck Mountains and were less 

 common to the south. We found nesting birds in inland areas at the 

 Salmon River, Tuluksak River (DNW photo), the Kisaralik River, Plati- 

 num, and the Togiak River. Mindell (1983) also found nesting birds along 

 the Kisaralik River and considered it a common bird in the Nyac area; 

 robins were seen daily on 16-21 June 1987 (B. J. McCaffery, personal 

 communication) and during 6 days on 12-27 August 1985 at the Kisaralik 

 River (M. Brown et al., unpublished). M. Brown et al. (unpublished) 

 found robins on 11 days during 1 1-27 July 1985 at the Kwethluk River. 

 Robins were seen at the Eek River in summer (R. Baxter, unpublished; 

 17-24 and 26-29 June 1985, M. Brown et al., unpublished) and at the 

 Kanektok River on 4 August 1973 Q. L. Hout, personal communication), 

 and were thought to nest at Kagati Lake (M. J. Fry, unpublished). Along 

 the coast, we saw a robin at Cape Peirce (13 May 1973) and Cape 

 Newenham (21 May 1973). 



Birds nested above 15 m asl along the coast and inland 90-340 m asl. 

 We found 5.3 pairs per square kilometer in disturbed and undisturbed 

 riparian habitats at the Tuluksak River in 1983. Nest sites near Nyac were 

 in the main valley floors or lower slopes in the vicinity of man-made 

 structures (four), riparian woodland (one), secondary broadleaf wood- 



