Friday, October 28, 2011

October 28 [Day 37] (Terry Waters) The temperature reached 7C at 1400 and 1500 from a morning low of -3C and was 3C at 1800. Ground winds were SW all day, generally 10-20 gusting 30 km/h and sometimes higher, while ridge winds were very strong gusting above 100 km/h all day and peaking at 136 km/h at 1800. Cloud cover was 100% altostratus and altocumulus all day except for a brief period around 1100 when it reduced to 50%, and between 1400 and 1600 the ridge tops were hazy. For the third straight day raptor movement was sparse with only 18 birds migrating between 1005 and 1658, and 6 of these (2 Sharp-shinned Hawks, 1 Northern Goshawk, 1 Rough-legged Hawk and 2 Golden Eagles) moved between 1000 and 1100. The flight comprised 2 Sharp-shinned Hawks (1a,1j), 1 adult Northern Goshawk, 1 dark morph Rough-legged Hawk and 14 Golden Eagles (9a,1sa,4u). Because of the high ridge winds a number of eagles moved to the west of the Fisher Range and 6 birds flew from Mount Lorette to the south high above the centre of the valley. This is the 3rd consecutive day of low Golden Eagle movement and it is possible that we are simply running out of birds! Songbirds flew low above the river to the south throughout the day to avoid the wind, including 36 Bohemian Waxwings, 6 Grey-crowned Rosy-Finches, 65 Common Redpolls and 6 Pine Siskins. A late male Brewer's Blackbird was in the Meadow, and a Northern Pygmy-Owl sang from east of the river around noon.

10.5 hours (426.86) SSHA 2 (108), NOGO 1 (33), RLHA 1 (31), GOEA 14 (3252) TOTAL 18 (3606)

0 comments:

Post a Comment

Blog Archive