Thursday, April 30 Beaver Mines [Day 66] 0630-2030 (Peter Sherrington and Hilary Atkinson). The temperature at 0630 was 12C, the high from 1100 to 1300 was 17C and it was 10C at 2030. Winds were again WSW-W all day, 25-40 km/h to 0800, then 35-45 gusting 60-70 km/h to 1900 and moderating to 20-25 km/h at the end of the day. Cloud cover was 10% cumulus to 0830 then variable 20-80% cumulus with altocumulus, thin altostratus and thin cirrostratus for the rest of the day that once again gave excellent observing conditions. A total of 32 migrant raptors of 9 species moved between 0846 and 1932 that comprised a season-high 6 Ospreys, 4 Bald Eagles (2 sa3, 2j), 7 Sharp-shinned Hawks (3a, 4u), 1 adult Cooper’s Hawk, 1 juvenile Northern Goshawk, 1 juvenile dark morph Swainson’s Hawk, 1 dark morph Rough-legged Hawk, 9 Golden Eagles (1sa, 8j) and 2 Merlins (1a female columbarius and 1 female/juvenile richardsonii that was the first record of the subspecies this season). Movement was fairly steady with a high hourly count of 7 between 1500 and 1600. Other birds were 9 Canada Geese, 2 Wood Ducks, 8 Mallards, 3 Common Mergansers, 6 Rock Pigeons, 2 Mourning Doves, 1 male Rufous Hummingbird, no Sandhill Cranes were seen or heard but at 1617 an adult Whooping Crane appeared at the top of the ridge and flew high to the north with a steady slow wingbeat and almost passed directly overhead, 5 Wilson’s Snipe, 1 Downy Woodpecker, 1 Blue Jay, 3 Black-billed Magpies, 20 American Crows, 17 Common Ravens, 24 Tree Swallows, 4 Mountain Chickadees, 1 Ruby-crowned Kinglet, 5 American Robins, 40 European Starlings, 22 Evening Grosbeaks, 3 male and 2 female Cassin’s Finches, 1 intergrade oriantha– gambelii White-crowned Sparrow, 1 male Dark-eyed [montanus] Junco, 20 male Red-winged Blackbirds and 3 male Common Grackles.

14 hours (834.7) OSPR 6 (17), BAEA 4 (377), SSHA 7 (133), COHA 1 (26), NOGO 1 (52), SWHA 1 (9), RLHA 1 (65). GOEA 9 (1172), MERL 2 (33) TOTAL 32 (2306)

April Summary Beaver Mines (with percentage variance compared to 2015-2019 average for April 1-22) This is the first time a complete April count has been conducted at the site; for the comparisons for the standard count period see the report for April 22. Thirty days (+44.2%), 410 hours (+96%) TUVU 14 (+775%), OSPR 17 (+431.3%), BAEA 153 (+57.4%), NOHA 40 (+3.6%), SSHA 114 (+114.3%), COHA 22 (+103.7%), NOGO 20 (+7.5%), UA 0, BWHA 21 (+162.5%), SWHA 9 (+246.2%), RTHA 249 (+73.4%), FEHA 3 (-6.3%), RLHA 15 (-35.9%), UB 8 (-7%), GOEA 277 (+29.7%), UE 0, AMKE 21 (+169.2%), MERL 28 (+211.1%), GYRF 3 (+87.5%), PEFA 14 (+112.1%), PRFA 4 (+25%), UF 0, UU 0 TOTAL 1032 (+56.8%)

Wednesday, April 29 Beaver Mines [Day 65] 0630-2030 (Peter Sherrington and Hilary Atkinson). The temperature at 0630 was 8C, the high from 1500 to 1700 was 20C and it was still 17C at 2030. Winds were again W-WSW all day, 20-30 gusting 40-50 km/h in the morning and slightly moderating to 20-30 gusting 35-40 km/h in the afternoon. Cloud cover was 90-100% all day mainly comprising altostratus and altocumulus with varying amounts of thin cirrostratus and cirrocumulus that allowed hazy sunshine most of the time. Observing conditions were again excellent and a total of 30 migrant raptors were seen moving high and fairly steadily between 0936 and 1954. The count was 1 adult Turkey Vulture, 3 probable juvenile female Northern Harriers, 7 Sharp-shinned Hawks (1a, 6u), 2 Cooper’s Hawks (1j, 1u), 1 adult Northern Goshawk, 1 adult light morph Broad-winged Hawk, 10 Golden Eagles (2sa, 7j, 1u), 3 American Kestrels (2 males, 1 female), 1u columbarius Merlin and 1 adult female Peregrine Falcon. The highest hourly counts were 5 between 1700 and 1800 and again between 1900 and 2000. Resident Red-tailed Hawks were seen in the air almost continuously between 0916 and 1944 with 10 widely-spaced soaring birds seen at 1030 and groups of 3 to 5 birds occurred several times with males often displaying. No migrant Red-tails were seen. The resident pair of Northern Harriers was also present with the male only seen displaying at 1045. Other birds were 11 Canada Geese, 5 Mallards, 4 Green-winged Teal, 11 Rock Pigeons, 1 Mourning Dove, 1 male Rufous Hummingbird that was a season’s first for the site, 5 Sandhill Cranes, 4 Wilson’s Snipe, 1 Red-naped Sapsucker, 2 Downy Woodpeckers, 1 Red-shafted Flicker, 2 Blue Jays, 25 American Crows, 20 Common Ravens, 4 Tree Swallows, 3 Black-capped Chickadees, 1 Mountain Chickadee, 6 American Robins, 10 European Starlings, 23 Evening Grosbeaks, 2 male Cassin’s Finches that were the first seasonal record for the site, 3 intergrade oriantha– gambelii White-crowned Sparrows, 2 Dark-eyed Juncos (1 cismontanus and 1 montanus), 12 male and 1 female Red-winged Blackbirds and 3 male and 1 female Common Grackles.

14 hours (820.7) TUVU 1 (14), NOHA 3 (45), SSHA 7 (126), COHA 2 (25), NOGO 1 (51), BWHA 1 (21), GOEA 10 (1163), AMKE 3 (21), MERL 1 (31), PEFA 1 (17) TOTAL 30 (2274)

Tuesday, April 28 Beaver Mines [Day 64] 0700-2030 (Peter Sherrington and Hilary Atkinson). The temperature at 0700 was 4C, the high at 1700 was 15C and it was 12C at 2030. Yet again the winds were W-WSW all day, 35-45 gusting 55-60 km/h, and it was cloudless to 1440 after which cloud cover was 20-40% altocumulus and lenticular that gave excellent observing conditions. The conditions were also conducive for raptor migration after 1100 with a total of 33 birds moving fairly steadily between 1108 and 1930 comprising 14 species, which equals the season high species count and includes a rare “grand-slam” of all 5 falcon species. The count was 1 adult Turkey Vulture, 1 Osprey, 8 Bald Eagles (6a, 1sa2, 1 sa2), 4 Sharp-shinned Hawks (2a, 2u), 1 juvenile Cooper’s Hawk, 1 adult light morph Swainson’s Hawk, 2 adult light morph calurus Red-tailed Hawks, 1 dark morph Rough-legged Hawk, 6 juvenile Golden Eagles, 1 female American Kestrel, 2 male columbarius Merlins, 1 juvenile female grey morph Gyrfalcon that flew directly overhead at 1256, 2 adult Peregrine Falcons (1 male, 1 female) and 2 female Prairie Falcons. The highest hourly count was 8 birds between 1100 and 1200, and 3 other hours saw the passage of 5 birds. Residents were again a pair of Northern Harriers with the male seen displaying at 1711, and 2 pairs of Red-tailed Hawks seen regularly between 0903 and 1834 with males seen displaying at 1557 and 1710. Other birds were 4 Canada Geese, 3 Wood Ducks that were the first of the season, 4 Mallards, 1 pair of Northern Pintails, 8 Rock Pigeons, 2 Mourning Doves, 1 male Rufous Hummingbird that was seen by Gord Petersen across the road that was also a season’s first, 2 pairs of resident Sandhill Cranes and 1 pair that flew high to the SW at 0945, 2 Long-billed Curlews, also a season’s first,  that were seen by Troy Malish at 0750 flying in the direction of the site but which were not subsequently relocated, 1 Great Blue Heron, 2 Downy Woodpeckers, 1 Hairy Woodpecker, 1 Red-shafted Flicker, 2 Steller’s Jays, 24 American Crows, 13 Common Ravens, 3 Tree Swallows, 3 Black-capped Chickadees, 4 Mountain Chickadees, 6 American Robins, 6 European Starlings, 15 Evening Grosbeaks, flocks of 9 and 70 Grey-crowned Rosy-Finches that flew to the N at 1743 and 1854 respectively, 1 second-year male House Finch, 2 Pine Siskins, 1 female Spotted Towhee, 1 White-crowned Sparrow of the race gambelii that was a first for the site this year, 5 Dark-eyed Juncos (1 hyemalis, 2 cismontanus and 2 montanus), 8 male Red-winged Blackbirds, 2 male Common Grackles and 1 Orange-crowned Warbler.

13.5 hours (806.7) TUVU 1 (13), OSPR 1 (11), BAEA 8 (373), SSHA 4 (119), COHA 1 (23), SWHA 1 (8), RTHA 2 (276), RLHA 1 (64), GOEA 6 (1153), AMKE 1 (18), MERL 2 (30), GYRF 1 (5), PEFA 2 (16), PRFA 2 (9) TOTAL 33 (2244)

Monday, April 27 Beaver Mines [Day 63] 0730-2030 (Peter Sherrington and Hilary Atkinson). The temperature at 0730 was 7C, the high at 1100 was 11C, but fell to 8C at 1300, recovered to 10.5C at 1400 and 1500, and then fell to 5C at 1800 where it remained for the rest of the day. Winds were W-WSW all day 35-45 gusting 50-60km to 1600 with the exceptions of 1100 and 1200 when they were 60-70 gusting 80-90 km/h; after 1600 winds moderated to 20-30 km/h. Cloud cover was 100-70% altostratus, altocumulus, cumulus and stratocumulus to 1900 apart from around 0900 when it briefly reduced to 10% cumulus. After 1900 it was 20-40% cumulus that allowed continuous bright sunshine. The ridges to the SW were obscured for much of the day and after 1145 a series of rain showers were blown from the SW that became steady light to moderate rain between 1530 and 1900. Raptor movement was very poor and only 8 migrants were seen between 1059 and 1356 with 5 of these birds recorded between 1343 and 1356. The count was 3u Sharp-shinned Hawks, 2 adult light morph calurus Red-tailed Hawks, 1 juvenile Golden Eagle, 1u American Kestrel and 1 adult male columbarius Merlin. Resident birds were the pair of Northern Harriers with the male hunting at 1347 and the female at 1405, and periodic sightings of usually single hunting Red-tailed Hawks to 1834 with only a single display flight at 0750. Other birds were 2 Canada Geese, 4 Mallards, 1 pair of Northern Pintails, 12 Rock Pigeons, 3 Mourning Doves, 1 pair of Sandhill Cranes, 2 Downy Woodpeckers, 2 Hairy Woodpeckers, 2 Red-shafted Flickers, 2 Steller’s Jays, 3 Blue Jays, 2 Black-billed Magpies, 24 American Crows, 20 Common Ravens, 5 Tree Swallows, 2 Black-capped Chickadees, 4 Mountain Chickadees, 9 American Robins, 36 European Starlings, 20 Evening Grosbeaks, a flock of 40 Grey-crowned Rosy-Finches that flew to the N at 1408, 1 Dark-eyed [montanus] Junco, 12 male Red-winged Blackbirds and the first female of the season, 2 male Common Grackles and 1 Orange-crowned Warbler which was the first for the season. Yesterday I forgot to report the first butterfly of the year, a Mourning Cloak, which was on the wing at 1113.

13 hours (793.2) SSHA 3 (115), RTHA 2 (274), GOEA 1 (1147), AMKE 1 (17), MERL 1 (28) TOTAL 8 (2211)

Sunday, April 26 Beaver Mines [Day 62] 0730-2030 (Peter Sherrington and Hilary Atkinson). The temperature at 0730 was 5C, the high at 1700 was 14C and it was 10C at 2030. Winds were WSW-W all day 35-45 gusting 55 km/h that increased to gusts of 70-80 km/h between 1300 and 1600. Cloud cover was 20-100% continuously varying mixtures of altostratus, altocumulus, cirrus, cumulus and lenticular that allowed sunshine or hazy sunshine all day and gave excellent viewing conditions for the mainly high to very high flying migrants. There was a steady stream of 50 migrants of 13 species between 0909 and 2012 that comprised 1 adult Turkey Vulture, 4 Ospreys, 6 Bald Eagles (5a, 1j), 2u male Northern Harriers, 9 Sharp-shinned Hawks (2a, 7u), 4 Cooper’s Hawks (3a, 1u), 2 adult Northern Goshawks, 2 adult light morph Broad-winged Hawks, 2 light morph calurus Red-tailed Hawks (1a, 1u), 12 Golden Eagles (1a, 4sa, 6j, 1u), 3 American Kestrels (2 female, 1 male), 1u male columbarius Merlin and 2 adult Peregrine Falcons (1 male, 1 female). Thirteen birds moved before noon and the highest hourly counts were 10 (1600-1700) and 9 (1700-1800). Resident birds were a pair of Northern Harriers with the male only seen displaying at 0755, and 2 pairs of Red-tailed Hawks that were frequently seen hunting; occasional interloping single adult birds were seen with soaring pairs and which generally evinced high energy displays by the affronted males. Other birds were 4 Canada Geese, 10 Rock Pigeons, 1 Mourning Dove,  2 pairs of Sandhill Cranes, 1 Downy Woodpeckers, 1 Hairy Woodpecker, 5 Blue Jays, 19 American Crows, 15 Common Ravens, 4 Tree Swallows, 4 Mountain Chickadees, 21 American Robins, 6 European Starlings, 10 Evening Grosbeaks, a flock of 20 Pine Siskins that flew to the N at 1251 which were the first for the season, 3 Dark-eyed Juncos (1 cismontanus and 2 montanus), 6 male Red-winged Blackbirds, and 2 male Common Grackles. This afternoon Gord Petersen and Cathy Scrimshaw saw and photographed 2 Whimbrels south of the municipal land-fill site near Lundbreck: this is a new species for the study area.

13 hours (780.2) TUVU 1 (12), OSPR 4 (10), BAEA 6 (365), NOHA 2 (42), SSHA 9 (112), COHA 4 (22), NOGO 2 (50), BWHA 2 (20), RTHA 2 (272), GOEA 12 (1146), AMKE 3 (16), MERL 1 (27), PEFA 2 (14) TOTAL 50 (2203)