KILBUCK AND AHKLUN MOUNTAIN BIRDS 



115 



American tree sparrow {Spizella arbored). Uspm, Csr, Rfm 

 (2 May-25 September). Specimens: RMS1962/36/55 and 

 BMNH/83sk/DNW02. 



Sparrows nested throughout the mainland portion of the study area. 

 We found nests at the Salmon and Tuluksak rivers. Birds probably nested 

 at the Kisaralik River, Kagati Lake (M. J. Fry, unpublished), the Kanektok 

 River (White and Boyce 1978), and Goodnews and Chagvan bays. Tree 

 sparrows were seen near Nyac on 15 July 1980 (Mindell 1983), along the 

 Kisaralik River in 1980 (Mindell 1983), 1985 (8-28 August; Brown et al., 

 unpublished), and 1987 (16-21 June; B.J. McCaffery, personal commu- 

 nication), along the Kwethluk River (10-27 July 1985; M. Brown et al., 

 unpublished), and along the Eek River (summer; R. Baxter, unpublished; 

 17-29 June 1985; M. Brown et al., unpublished). 



American tree sparrows nested at 9-550 m asl in low to tall shrub 

 habitats, especially at the edges. We found 6 1.7 pairs per square kilome- 

 ter in disturbed and 24.1 pairs per square kilometer in undisturbed 

 riparian plots at the Tuluksak River in 1983. where we also found 

 10.0 pairs per square kilometer in riparian shrub thickets above timber- 

 line. At the Tuluksak River, one female began laying eggs on 1 June 1974. 

 We found fully feathered young there between 25 and 30 June 1962 and 

 1974 and recently fledged young as late as 28 July 1974. In most years, 

 birds were in the area until late August, with the latest recorded on 

 25 September 1977. At the Kisaralik River, M. Brown et al. (unpublished) 

 found 1 to "many" (>15) birds per day on l6 days from 8 to 28 August 

 1985. Along the coast, we also saw them in fall at the Togiak River (August 

 1973), the Slug River (5 September 1973), and Security Cove (23 Septem- 

 ber 1973), as well as the Cape Peirce area in spring (7-12 May 1973; 

 2-8 May 1976), summer (20 June 1970), and fall (23 August 1970; 

 7-23 September 1973). 



Savannah sparrow (Passerculus sandtvichensis), Asr, Cfm (3 

 May-25 September). Specimens: UAM2642 and UAM3134. 



Savannah sparrows were possibly the most common land bird in the 

 study area; they nested and migrated throughout the area. In inland areas 

 birds nested at the Salmon, Tuluksak, Kisaralik, and (possibly) Togiak 

 rivers. MindeU (1983) found sparrows uncommon in the Nyac area on 

 15 July 1980 and a common nesting bird along the Kisaralik River in 1982; 

 sparrows were seen along the Kisaralik River in 1985 (10-18, 22 August; 

 M. Brown et al., unpubUshed) and in 1987 (16-19 June; B. J. McCaffery, 

 personal communication). Sparrows probably nested at Kagati Lake (M.J. 

 Fry, unpublished) and at the Kanektok River Q. L. Hout, personal com- 

 munication) where White and Boyce (1978) found them abundant. 

 Sparrows were found at the Kwethluk River (1 to >15 birds per day on 



