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: Chicago Lakefront CBC, 25 Dec 2014, final results  ( 1334 )

Geoffrey A. Williamson

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Chicago Lakefront CBC, 25 Dec 2014, final results
« : January 08, 2015, 07:43:35 AM »
The 61st edition of the Chicago Lakefront CBC was held on 25 December 2014 (Christmas Day).  This count circle includes the lakefront in Chicago from Jackson Park north to Montrose Point, with areas east of Lake Shore Drive (plus Jackson Park) covered. A whopping 25 individuals participated in this year's count, and they set a count circle record for number of species recorded on count day: 53. 

Highlight species included
  • Red-throated Loon (2nd year on the count)
  • Iceland Gull (5th year on the count)
  • Great Black-backed Gull (3rd year on the count)
  • Eastern Screech-Owl (first time on the count!)
  • Red-bellied Woodpecker (5th year on the count)
  • Hermit Thrush (4th year on the count)
  • American Pipit (2nd year on the count)
  • Lapland Longspur (2nd year on the count)
  • Red-winged Blackbird (4th year on the count)
  • Common Redpoll (3rd year on the count)

Record high counts were set for seven species: Redhead (79), Red-tailed Hawk (4), Thayer's Gull (9!), Great Black-backed Gull (3), Hermit Thrush (3), European Starling (851), and Common Redpoll (24).  We tied the high count for five other species: Ring-necked Duck (2), Red-throated Loon (1), Iceland Gull (1), Red-bellied Woodpecker (2), Red-winged Blackbird (1).

All told, 6792 individuals were recorded on the count.  Here is the list of species and totals.

Canada Goose 1658
Mallard 140
Redhead 79
Ring-necked Duck 2
Greater Scaup 217
Lesser Scaup 4
scaup sp.   31
Bufflehead 8
Common Goldeneye 197
Hooded Merganser 3
Common Merganser 217
Red-breasted Merganser 1340

Red-throated Loon 1
Common Loon 1

Double-crested Cormorant 1

Cooper's Hawk 1
Red-tailed Hawk 4

American Coot 45

Ring-billed Gull 496
Herring Gull 472
Thayer's Gull 9
Iceland Gull 1
Thayer's/Iceland Gull   1
Lesser Black-backed Gull 1
Great Black-backed Gull 3

Rock Pigeon 21
Mourning Dove 2

Eastern Screech-Owl   1

Red-bellied Woodpecker 2
Downy Woodpecker 9
Hairy Woodpecker 1

American Kestrel 1
Peregrine Falcon 2

Monk Parakeet 2

American Crow 62

Black-capped Chickadee 33

Brown Creeper 7

Golden-crowned Kinglet 2

Hermit Thrush 3
American Robin 47

European Starling 851

American Pipit 1

Lapland Longspur 1
Snow Bunting 14

American Tree Sparrow 24
Song Sparrow 2
Swamp Sparrow 1
White-throated Sparrow 8
Dark-eyed (Slate-colored) Junco 59

Northern Cardinal 35

Red-winged Blackbird 1

House Finch 2
Common Redpoll 24
American Goldfinch 39

House Sparrow 74
Geoff Williamson
Chicago (Cook County), Illinois

Matthew Cvetas

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Re: Chicago Lakefront CBC, 25 Dec 2014, final results
« #1 : January 08, 2015, 11:56:30 AM »
Screech-owl on the lakefront? Wow!
Nobody loves me but my mother, and she could be jivin' too.
-B.B. King

Amar Ayyash

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Re: Chicago Lakefront CBC, 25 Dec 2014, final results
« #2 : January 12, 2015, 11:56:17 AM »
Thanks for putting this together, Geoff.

I'm curious how this year's Ring-billed count compares to previous winters. I'm guessing it may be relatively high, and definitely higher than last year??
Time you enjoy wasting is not wasted time.  -B. Russell
http://anythinglarus.com

Geoffrey A. Williamson

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Re: Chicago Lakefront CBC, 25 Dec 2014, final results
« #3 : January 13, 2015, 10:16:14 AM »
In the 25 most recent years prior to this one (NAS count years 90 to 114, basically 1989 to 2013), the average number of Ring-billed Gulls on the Chicago Lakefront Count was 930.  The minimum was 142, the maximum was 2775, and the median was 910 over that period.  Here are some recent numbers:

414 in 2013
1185 in 2012
695 in 2011
1048 in 2010
408 in 2009
229 in 2008
633 in 2007
527 in 2006
302 in 2005
693 in 2004

So this year's total was a wee bit higher than last year's, and only about half the average.
Geoff Williamson
Chicago (Cook County), Illinois

Geoffrey A. Williamson

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Re: Chicago Lakefront CBC, 25 Dec 2014, final results
« #4 : January 13, 2015, 10:28:34 AM »
Tune in, turn on, identify grosbeaks!

The Ring-billed Gull numbers above come from the on-line CBC database.  The database also shows that during the years from 1964 to 1991 (count years 65 to 91), there were no passerines of any size, shape, or form recorded on this CBC.  None. Nada. Zilch.

Except on the count that took place 28 December 1967.  That year there were 15 Rose-breasted Grosbeaks and 23 Black-headed Grosbeaks on the count.  (And no other passerines.)  Earlier that year, the album Sgt. Pepper's Lonely Hearts Club Band was released by The Beatles.  Coincidence?
Geoff Williamson
Chicago (Cook County), Illinois

 

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