Wednesday, October 5, 2011

October 3 [Day 14] (George Halmazna) The temperature rose to a high of 15.5C at 1600 from a morning low of 2C, ground winds were mainly NE gusting to 18 km/h at 1500, but it was often calm, while ridge winds were strong SSW-SW all day gusting to 160 km/h at 1800. Cloud cover was 100% cirrus and cirrostratus thickening to altostratus and cumulus, diminishing to 70% at 1500 and 1600, and valley fog, that obscured all the ridges, persisted until 1000. The first raptor, a Cooper’s Hawk, was not seen until 1354, the last, 4 Golden Eagles, went south at 1645 and 15 of the day's 25 migrant raptors (14 Golden Eagles and 1 Peregrine Falcon) were recorded between 1600 and 1700. The flight comprised 1 Osprey, 4 Sharp-shinned Hawks (3a,1j), 1 juvenile Cooper's Hawk, 18 Golden Eagles (16a,2sa) and 1 Peregrine Falcon of unknown age. Non-raptor species included the season's first Hermit Thrush, 1 Varied Thrush, 2 Blue Jays, 150 Pine Siskins and a singing Great Horned Owl. 12.33 hours (163.9) OSPR 1 (2), SSHA 4 (34), COHA 1 (7), GOEA 18 (195), PEFA 1 (5) TOTAL 25 (277)

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