RMERF counts October 4

Thursday, October 04 Mount Lorette [Day 13] 0745-1930 (Rick Robb and Cliff Hansen). The initial temperature was -5C, the high at 1600 and 1700 was 3C and it was 0C at the end of observation. Ground winds were light (<5 km/h) and variable all day, and ridge winds appeared to be light W. Cloud cover was 60% altocumulus and cirrus that became cumulus and cirrus at 1400 and reduced to 20% after 1500. The ridges were clear all day. There was a fairly strong raptor movement of 125 migrants of 5 species between 1125 and 1923 that included the highest Golden Eagle count of the season. The count was 2 Bald Eagles (1a, 1j), 7 Sharp-shinned Hawks (5a, 2u), the first Swainson’s Hawk of the season, a light morph adult, 1 adult rufous morph calurus Red-tailed Hawk, and 114 Golden Eagles (15a, 2sa, 63j, 34u). Golden Eagle movement was increasingly strong from mid-afternoon with hourly counts of 21 (15-1600), 18 (16-1700), 25 (17-1800), 32 (18-1900) and 12 (19-1923). Only a few Golden Eagles were located over Mount Lorette and they appeared originate from Heart Mountain farther to the north, from where they crossed Wasootch Creek and flapped low to the SE in front of the Fisher Range, although there was some soaring flight between 1400 and 1700. Other birds seen were 1 Hairy Woodpecker, 4 Common Ravens, 2 Golden-crowned Kinglets, 3 Ruby-crowned Kinglets, 1 Swainson’s Thrush, 1 Varied Thrush, 2 American Robins, 2 American Pipits, 1 Song Sparrow and 6 White-winged Crossbills. Many of the birds were seen feeding at the river’s edge on newly emerged stoneflies. Looking distinctly out of place in the snowy landscape was a single Mourning Cloak butterfly on the wing. There were 5 visitors to the site today.

11.75 (125.5) BAEA 2 (14), SSHA 7 (39), SWHA 1 (1), RTHA 1 (12), GOEA 114 (395) TOTAL 125 (513)

Thursday, October 04 Vicki Ridge [Day 10] 0930-1745 (Peter Sherrington, assisted by Hilary Atkinson observing from the Lynx Creek road). The starting temperature was -5C, the high was 1C at 1600 and it was -2C at 1745. Winds were light all day, WSW to 1030 and subsequently E 4-10 km/h. Cloud cover was 100% stratus that became 100% altostratus, cirrostratus, altocumulus and cumulus after 1500 that produced hazy sunshine all day. There was another fairly strong and varied raptor migration with 107 birds of 12 species moving between 1044 and 1733. The flight comprised 2 Ospreys, 4 Bald Eagles (2sa, 2j), 1 adult male Northern Harrier, 61 Sharp-shinned Hawks (1a, 60u), 10u Cooper’s Hawks, 3 Northern Goshawks (1a, 2u), 3 small unidentified Accipiters, 3 Red-tailed Hawks (2 calurus: 1u light, 1 dark adult, and 1 adult dark harlani), 1 light morph Rough-legged Hawk, 1 unidentified dark Buteo, 12 Golden Eagles (9a, 3j), 1u American Kestrel, 2 columbarius Merlins (1 female, 1u), 1u Peregrine Falcon, 1 large unidentified falcon and 1 small unidentified raptor. Fifty of the birds moved between 1300 and 1500.

8.25 hours (89) OSPR 2 (8), BAEA 4 (26), NOHA 1 (12), SSHA 61 (389), COHA 10 (54), NOGO 3 (21), UA 3, RTHA 3 (78), RLHA 1 (16), UB 1 (4), GOEA 12 (251), AMKE 1 (11), MERL 2 (14), PEFA 1 (6), UF 1 (2), UU 1 (2) TOTAL 107 (919)

Thursday, October 04 Steeples [Day 12] 1300-1900 (Vance Mattson). The entire valley was enshrouded in low cloud which began to clear at 1300 but the mountains remained enveloped so Vance conducted the count from the balcony of his house in Wasa. The temperature was 6C, winds were calm or light W and cloud cover was 100-70% altocumulus, cumulus and altostratus; the mountains remained 90-100% obscured throughout. A season high total of 66 raptors of 10 species migrated between 1332 and 1812 comprising 2 Ospreys, 11 Bald Eagles (5a, 5j), 2 Northern Harriers (1 adult female, 1 juvenile), 11 Sharp-shinned Hawks (3a, 1j, 7u), 2 Cooper’s Hawks (1a, 1j), a season-high 28 Red-tailed Hawks (24 calurus: 20a (19 light, 1 dark), 1 light juvenile, 1 rufous juvenile and 2 unaged; 1j dark morph harlani and 3 birds of unknown race, morph or age), 1 light morph Rough-legged Hawk, 6 Golden Eagles (3a, 3j) 1 unidentified eagle, 1 female American Kestrel and 1u columbarius Merlin. About 90% of the birds moved over or just east of Wasa Lake and the highest hourly counts were 17 from 1600 to1700 and again from 1700-1800. There was also a strong movement of 147 American Crows including flocks of 28 and 40 birds, and 5 California Gulls also moved to the south.

6 hours (47) OSPR 2 (2), BAEA 11 (27), NOHA 2 (6), SSHA 11 (34), COHA 2 (4), RTHA 28 (64), RLHA 1 (1), GOEA 6 (20), UE 1 (1), AMKE 1 (3), MERL 1 (1) TOTAL 66 (168)