Date: 4/11/18 7:30 pm
From: steve.getty <SGetty...>
Subject: [cobirds] Re: House Sparrow decline - Front Range
Very interesting topic! I apologize for late reply

At our feeder/yard (just south, adjacent to Bear Creek Park, Colorado
Springs), we had occasional individuals during 5-10 years ago, but then
there was never more after that. I'd have to check notes, but I don't think
we've had one in past 5 years.

House Finch numbers are low, but steady. I've wondered if my sample is due
to other neighbors with feeders, or broader low frequency. Cassin's Finches
I wouldn't term "eruptive" per feeder, as low numbers are regular,
particularly after snowfall. (smart birdies know where to go!) One female
has been frequently the past week.

Steve Getty

On Wednesday, April 11, 2018 at 5:22:04 PM UTC-6, ouzels wrote:
> Twenty-one people responded to my query about House Sparrows.
> Most (17) noted diminishing numbers or total absence. They live from
> Colorado Springs through metro Denver to Longmont and Boulder. Examples:
> None in over a year (Gloria Nikolai, Colo Spgs);
> None this year (Don Hall, Highlands Ranch);
> Only 1 or 2, compared with half a dozen in past years (Keith Hidalgo,
> Lakewood);
> Disappeared from our back yard completely, and rarely see them in the
> south Suburban area (Mary Fran O'Connor);
> Definitely fewer over the years (Jean Stevenson, Aurora);
> Big decline after the rains and flood of Sep 2013 (Todd Deininger,
> Longmont);
> From 1996-2015, HOSP on 30.16% of my Colo. checklists; from 2015-2018,
> on 13.44% of my checklists. And in my backyard, from 1996-2015, on
> 58.21%checklists. So far in 2018, not a single one! (Richard Trinker,
> Boulder).
> On the Denver Urban CBC, counts of 183 in 1/1/2017 and 311 in
> 1/1/2018 -- the lowest in its history; with an average over 30 years of 1721.
> They used to outnumber House Finches (also declining) but now amount to
> half the number of finches. Top count 2583 in 12/30/1989. The drop started
> 1/1/2011.
> On the other hand, Patrick O'Driscoll (east Denver) noted a drop from
> winter counts of 25-30 to 10-12 the past few weeks -- the dispersal for
> nesting noted by Nick Komar.
> And three observers say the still have lots: Rebecca Laroche in
> central Denver, Marsha Heron in Centennial, and Jamie Simo in Longmont.
> Hugh Kingery

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