The Piitaistakis (South Livingstone Ridge)and Mt. Lorette Raptor Counts for the spring migration of 2010 are underway. Follow the daily movement of raptors in these field notes by Research Director Peter Sherrington and his citizen scientist colleagues.
Sunday, April 18, 2010
April 17 [Day 58] (Valley View site) (Bill Wilson) A temperature of 20C at 1500 was the highest so far this season, rising from 0.5C at 0620 and remaining at 11.5C at 2030. Ground winds were variable and light until 2000 when they gusted to 20 km/h from the WSW, and ridge winds were probably SW-W light all day. Cloud cover ranged from 30-100%, cirrus and altostratus to 1300 after which cumulus cloud predominated, all of which provided excellent viewing conditions. A total of 59 raptors migrated between 0919 and 1841 which is the second highest daily total so far this month. Because of the relatively calm conditions birds moved across a fairly broad front with a peak movement of 18 birds between 1100 and 1200. The flight comprised 9 Bald Eagles (3a,3sa,3j), a season high 12 Sharp-shinned Hawks (2a,1j,9u), a season high 3 Cooper’s Hawks (1a,1j,1u), 4 Northern Goshawks (1a,1j,2u), 2 unidentified accipiters, 8 Red-tailed Hawks that included 3 dark morph calurus adults and the season’s first “Krider’s Hawk”, 1 dark morph Rough-legged Hawk, 18 Golden Eagles (5a,5sa,5j,3u) and 2 Merlins (1 female/juvenile richardsonii and 1 of unknown subspecies, sex and age). Two Ruby-crowned Kinglets, a female Yellow-rumped [Myrtle] Warbler (the earliest ever record of the species at the site) and a male House Finch were all new for the year [species #52-54]. 14.33 hours (671.9) BAEA 9 (365) SSHA 12 (30), COHA 3 (4), NOGO 4 (74), UA 2 (5), RTHA 8 (74), RLHA 1 (34), GOEA 18 (2052), MERL 2 (8) TOTAL 59 (2668)
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- April 30 [Day 69] (Valley View site) I arrived on ...
- April 28 and 29 No observation. Winter storm condi...
- April 27 [Day 68] (Valley View site) It was a gloo...
- April 26 [Day 67] (Valley View site) (Dawn Hall to...
- April 25 [Day 66] (Valley View site) (Bill Wilson)...
- April 24 [Day 65] (Valley View site) (Bill Wilson)...
- April 23 [Day 64] (Valley View site) Heavy wet sno...
- April 22 [Day 63] (Valley View site) The temperatu...
- April 21 [Day 62] (Valley View site) For the secon...
- April 20 [Day 61] (Valley View site) The temperatu...
- April 19 [Day 60] (Valley View site) The temperatu...
- April 18 [Day 59] (Valley View site) (Denise Cocci...
- April 17 [Day 58] (Valley View site) (Bill Wilson)...
- April 16[Day 57] (Valley View site) The temperatur...
- April 15 [Day 56] (Valley View site) It was a very...
- April 14 [Day 55] (Valley View site) The ridges st...
- April 13 No observation. Light snow and flurries t...
- April 12 No observation. Snow, low overcast and a...
- April 11 [Day 54] (Valley View site) (Denise Cocci...
- April 10 [Day 53] (Valley View site) Under a cloud...
- April 9 [Day 52] (Valley View site) It was a cool ...
- April 8 [Day 51] (Valley View site) At 0700 it was...
- April 7 [Day 50] (Valley View site) It was another...
- April 6 [Day 49] (Valley View site) The temperatur...
- April 5 [Day 48] (Valley View site) Ground winds w...
- April 4 [Day 47] (Valley View site) The temperatur...
- April 3 [Day 46] (Valley View site) The day was ch...
- April 2 [Day 45] (Valley View site) The temperatur...
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