March
31 [Day
28] (Jim Davis assisted by Cliff Hansen) The temperature was -8C at
0700, rose to a high of 5C at 1300 and remained there until 1900. It
was initially calm with light to moderate SW winds developing
after1000, while ridge winds were mainly moderate SW-SSW gusting
between 44 and 85 km/h. Cloud cover at the start was 40% stratus and
cumulus, increasing to 60% at 1000 and thickening to 100% stratus at
1400 when rain and snow began obscuring all the ridges at which time
the count moved to the Lusk Creek site. At the Hay Meadow site a
Rough-legged Hawk perched in a tree from 0833 and the first migrant
Golden Eagle was seen at 0942. The last Golden Eagle was seen from
there at 1336 by which time 1 unaged Sharp-shinned Hawk, the
Rough-legged Hawk and 8 Golden Eagles (6a,1j,1u) had been recorded.
At Lusk Creek it was calm until 1900 when a S wind to 20 km/h
developed, and cloud cover was 100% stratus, but there was a slow but
steady stream of migrant raptors after 1431 and especially between
1700 and 1800 when some clearing of the weather produced 11 Golden
Eagles between 1700 and 1734 followed by a blank 1.5 hours. A total
of 15 birds were seen there comprising 1 adult Bald Eagle, 1 adult
light morph calurus
Red-tailed Hawk (the first for the count this season) and 13 Golden
Eagles (9a,1j,3u). The highlight of non-raptor movement at Mount
Lorette was a flock of 12 Northern Flickers flying north about 10m
above the centre of the valley at 1111, while at Lusk Creek about 500
Bohemian Waxwings occurred in three flocks. 12.16 hours (270.84) BAEA
1 (42), SSHA 1 (3), RTHA 1 (1), RLHA 1 (5), GOEA 21 (828) TOTAL 25
(828)
March
summary
This year's March count was characterized by higher than average
temperatures, a prevalence of very strong SW downslope winds and
higher than average snowfall and low cloud obscuring the ridges. Only
3 full days were lost to weather, but several other days were
shortened and a total of 8 days (including those lost) had 0
migrants, a further 5 days saw the passage of only 1 bird and a total
of 17 days had a passage of 10 or less birds. Compared to the
averages of the previous 19 March counts (1993-2011) the 28 days and
270.84 hours spent in the field were 3.27 and 12.83% below average
respectively. The combined species total of 825 is 65.95% below
average and is the second lowest ever (behind the count of 743 in
2009). The total of 771 Golden Eagles is 66.42% below average and the
42 Bald Eagles are 60.6% below average and both species represent the
second lowest counts ever behind counts of 684 and 36 respectively in
the 2009 count. Of the other 3 species who's average occurrence
during the month is above 2, the 1 Northern Goshawk is 90.9% below
average, the 1 Red-tailed Hawk is 75.6% below average and, bucking
the trend, the 5 Rough-legged Hawks are 86.27% above average. It is
interesting to note that the percentage of immature Golden Eagles is
still low suggesting that the April count still holds some promise of
significant movement. Final march count: 28 days (270.84) TUVU 0,
OSPR 0, BAEA 42, NOHA 0, SSHA 3, COHA 1, NOGO1, BWHA 0, SWHA 0, RTHA
1, FEHA 0, RLHA 5, GOEA 771, AMKE 0, MERL 1, GYRF 0, PEFA 0, PRFA 0,
UA 1, UB 1, UE 1, UU 0 TOTAL 825.
The
further adventures of “Elaine” Today
Elaine moved about 35 km to the W and is now near the headwaters of
the Salcho River, west of the Yukon Charley Rivers National Preserve,
which puts her about 50 km SE of where she was on March 30 last year.
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