March 27 [Day 23] (Bill Wilson) The temperature rose to 1C at 1500 from a low of -9C and was -2C at the end of the day. Ground winds were calm to very light SW to noon, after which they became N-NE 5-15 gusting 33 km/h, while ridge winds were calm to variable not exceeding 15 km/h. Cloud cover was 10% stratus and altostratus at the start but had increased to 70% by 0800 and low stratus over Hummingbird Plume Hill spread north to envelop Mount Lorette between 0735 and 0845. Seventy percent light altostratus cover persisted to 1400 giving mainly sunny conditions, after which it thickened and between 1630 and 1700 reached 100% stratus that produced snow flurries and later steady snow developed. By 1700 most ridges were obscured. The first birds seen were 4 adult Golden Eagles that soared over the summit of Mount Lorette, which had possibly had just lifted off from an overnight roost, and 4 minutes later the mountain was completely enveloped in cloud. The day's last Golden Eagle was seen at 1641, but an adult Bald Eagle soaring south of Hay Meadow at 1727 before gliding north in snow was the day's last migrant. The highest hourly count was 40 Golden eagles between 1000 and 1100, with most of the birds spending time soaring in kettles, and movement was fairly steady to 1700 when the weather deteriorated. The flight of 164 birds comprised 4 adult Bald Eagles, 1 adult male Northern Harrier, 1 adult Northern Goshawk, 1 dark morph Rough-legged Hawk, 155 Golden Eagles (130a, 3j, 23u) and 1 unidentified eagle. The last 6 days have now produced a total of 1324 migrant Golden Eagles which is the most sustained movement we have seen at the site for several years. Other birds recorded included the year's first Varied Thrush, 24 Common Mergansers flying high to the south at 1631, 2 flocks of 24 and 29 Tundra Swans flying high to the north over the centre of the valley at 1821 and 1905 respectively, and the day began with 3 Great Horned Owls singing to the SE and N of the site. 12.75 hours (253.5) BAEA 4 (96), NOHA 1 (2), NOGO 1 (7), RLHA 1 (9), GOEA 156 (2013), UE 1 (10) TOTAL 164 (2144)