Tuesday, March 15, 2011

March 15 [Day 11] (Brian McBride) The temperature rose to a high of 8C at 1500 from a low of -4C and was 3C at 1900. Ground winds were SW most of the day, generally 10-20 km/h while ridge winds were strong SW gusting to 120 km/h late in the day. Cloud cover was 100% altostratus and stratocumulus to noon reducing to 80% by 1500 and to 30% by the end of the day, and the ridges remained clear all day. A total of 60 raptors migrated between 0835 and 1829, of which 58 were Golden Eagles (56a, 2sa) the other birds being a subadult Bald Eagle and an undetermined dark morph Buteo. Most birds moved high to the NW from the Fisher range to Mount Lorette until late in the afternoon after which they moved high over the centre of the valley. Five American Dippers were the only other birds recorded from the site. 11.25 hours (120.58) BAEA 1 (21), UB 1 (1), GOEA 58 (249) TOTAL 60 (274)


On this day the adult female Golden Eagle #78453 (see March 12) was at approximately 116oE and 52oN which would put it in the Ram Range about 53 km S of Nordegg, 25 km SW of Abraham Lake (North Saskatchewan River) and 20 km E of Kootenay Plains. This also puts it about 130 km NW of Mount Lorette (over which it almost certainly passed) and about 285 km NNW of Piitaistakis-South Livingstone.

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