118th Christmas Bird Count: Canada Summary

In Canada,463Christmas Bird Count (CBC)circlessubmitted their results from the 118thseason, including five new counts: Powder King (BC); Moose Jaw, Qu’Appelle, and Shell Lake (SK); and Minto/Chipman(NB).A few CBCs also returned after years of dormancy. All in all,10,560field observers and3704feeder counters dedicated their time and bird counting skillsand tallied2.8million birds of 287speciesninemore species than last year.

As usual, the weather preceding and during the count period keepsthingsinteresting from year to year. This year’s count saw variable weather patterns across the country, including strong southerly winds in the Atlantic, which brought in unprecedented numbers ofSummerand Scarlettanagers, Indigo Buntings, Yellow-throated Warblers, Rose-breasted Grosbeaks, and Gray Catbirds. Québec and Ontario counts had relatively cold weather, resulting in fairly extensive snow and ice coverand affecting species counts.The Prairie Provinceshad relatively cooperative weather during the first part of the count period, with colder temperatures moving in towards the second half of the period.British Columbiahadwarm weather during most of the count period thanks to the jet stream running along the Rockies. This resulted in extensive open water and manylingering migrants, as well as higher than usual numbers of more northerly species, like Pine Grosbeak and Hoary Redpoll. CBC participants never fail to demonstrate that they are the hardiest of birders, especially those in Northern Canada– Mayo in Yukon Territory had a low of -42 degrees Celsius during their count!

The top 15 most abundant species reported on Canadian counts during the 2017-18 CBC season, listed from most to least abundant, were:American Crow, Canada Goose, European Starling, Mallard, Black-capped Chickadee, Rock Pigeon, House Sparrow, Snow Bunting, American Goldfinch,Mourning Dove,Herring Gull,Glaucous-winged Gull, Blue Jay, Common Raven, and Common Redpoll.Though American Crow was the most abundant species, its close relative, the Common Raven, was the most widespread species,showing up in434circles. The next most widespread species included Black-capped Chickadee, DownyWoodpecker, Hairy Woodpecker, Red-breasted Nuthatch, Rock Pigeon, European Starling, Bald Eagle, Blue Jay, and House Sparrow to round out the top 10.

Results By Region

Once again,British Columbia topped the species richness chart in Canada, breaking past the 250 species mark.On the opposite end of the spectrum, Nunavut scored four species (Common Raven, Rock Ptarmigan, Willow Ptarmigan, and Common Eider). Though down from last year, four species is an impressive totalfor Nunavutgiven the limited amount ofdaylightavailableduringthesenortherlycounts.In fact, the most northerlycircle,Arctic Bay, NU,only gets twilight hours to work with during the count period!All provincial and territorialcounts are summarizedin Table 1.

As always,exciting raritieseither for the region or time of year aredocumentedduring each CBC season.Perhaps the most notable find of the 118thCBCin CanadawasaMistleThrushinNew Brunswick(Miramichi), which isthe first record for this species in North America and attracted flocks of birders from Canada and the U.S.Québec scoredseveral interesting finds, includingBlack-headed Gull (Î-de-la-Madeleine),Clay-coloured Sparrow (ʱé), EurasianCollared-Dove(DzԳٰճܰ),Lark Sparrow(Québec), andMountain Bluebird (Cap-Saint-Ignace).Ontario had an “APP’s” Yellow-rumpedWarbler and a Tufted Duck (Peel-Halton) as well as a Black Vulture (Niagara Falls), which has become more regular in recent years.Manitoban counters got a Varied Thrush (Cypress River) and aTownsend’s Solitaireand two House Sparrow x Eurasian Tree Sparrow hybrids (Winnipeg).Interesting finds in Saskatchewan included a Gyrfalcon (Clark’s Crossing)and a resilient Hermit Thrushthatspentthe entire winter in Swift’s Current.Some ofAlberta’s rarities includea Red-bellied Woodpecker (Strathcona)and Greater Yellowlegs (Brule).British Columbia was luckyto get many uncommonbirds due tothemildweather, includingBrambling(Greater Masset),Bullock’s Oriole(Sooke), Mountain Bluebird (Victoria), Say’s Phoebe (Kelowna), and Costa’s Hummingbird (Powell River).

Detailed regional summaries for the 118thCBC will be available on the APP website.Historical or current year results by count or species can be found on the APP website .CBC datahave beenusedwidelyby researchers and wildlife biologists to develophundreds ofconservation planning documents and peer-reviewed scientific publications. Check out the CBC bibliography on the APP website.

The CBC in Canada would not be possible withoutthe tireless efforts of theparticipants, compilers, and regional editors. Special thanks are owed to the hundreds of compilers who spend hours recruiting and organizing participants on the ground and rounding up and entering data. Another huge thank you goes to the regional editorswho carefullyensure all CBC data are reviewedand vettedeach year. Bird Studies Canada and the APP coordinate and provide support to the CBCin Canada.

Table 1.118th Christmas Bird Count Summary / Tableau 1.Résumé du 118e Recensement des oiseaux de Noël.

Counts

Species

Individuals

Field Observers

Feederwatchers

Highest Species Total

AB

54

131

185,751

1218

729

Calgary (64)

BC

95

266

769,378

2921

633

Victoria (144)

MB

20

83

50,750

354

174

Winnipeg (49)

NB

24

150

88,508

364

191

Grand Manan Island (68)

NL

7

90

23,797

95

35

St. Johns (60)

NS

34

185

204,838

671

374

Halifax-Dartmouth (124)

NT

4

26

3520

27

13

Hay River (18)

NU

2

4

499

2

0

Rankin Inlet (3)

ON

125

205

1,102,965

3394

1082

Long Point (105)

PE

3

76

19,293

42

7

East Point (52)

QC

42

157

203,310

980

220

Québec (71)

SK

41

96

98,774

379

156

Gardiner Dam (43)

YT

12

39

8571

113

90

Whitehorse (24)

Total

463

287

2,759,954

10,560

3704