Finally, a report on the results of the 32nd Denver Urban CBC.We had 166 observers in 18 field parties & 12 feeders.
We tallied and average 85 species (depending on one Rare Bird Form to come I hope) and 46,597 birds (117% of average). This year Canada & Cackling Geese comprised 64% of the birds -- last year 75%.
Interesting counts:
* Say's Phoebe: two groups (led by Mike Serruto & Dustin Casaday) saw 5 birds. Previously, Mike's group had seen them 4 out of the last 6 years.
High Counts
* Bushtits: 195 - way way more than the previous high of 106 in 2016. Reports came from 6 of the 12 feeders and 8 of the 18 field parties.
* Red-breasted Nuthatch: 32, twice the average but not a high count.
* White-breasted Nuthatch: 29 compared to an average of 10; highest count last year, with 39.
* Black-capped Chickadee: 381, highest count and twice the average.
* Spotted Towhee: 19, highest count. It shows a steady increase over the past 8 years.
* Blue Jays: 77, highest count. They have shown a steady increase over the count.
* Red-tailed Hawk: 113, average 64. Only in the last 5 years have we counted more than 100 of them.
* Double-crested Cormorant: 56, courtesy of 46 on Bob Canter's north section of the South Platte River.
average, 3.
* Record counts -- 255 Hooded Mergansers and 185 Buffleheads; both display a steady increase over the count years.
Low Counts:
* All passerines: 6,095 (73% of average) and without crows & starlings 1,375 -- the lowest ever, only 35% of average.
* Am. Tree Sparrow: 40, lowest but one and only 18% of average.
* Dark-eyed Junco: 173, lowest but one (2006) and 44% of average.
* House Finch: 546, 46% of average. Numbers started to drop in 2002.
* House Sparrow: 124, 9% of average. It shows a steady decline, particularly in the past 15 years.
* 51 Common Mergansers (10% of average), and 49 Pintails (29% of average); each had only one lower count, both in 1989.
Hugh Kingery
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