Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-13 Thread wwillem
The book: *The moth snowstorm: nature and joy*. Michael McCarthy . Publ. by John Murray (2015). Willem van Vliet-- Boulder On Monday, April 9, 2018 at 4:21:36 PM UTC-6, Richard Trinkner wrote: > > Some personal House Sparrow data: > > Betw

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-13 Thread wwillem
In *The Moth Snowstorm: Nature and Joy, *Michael McCarthy writes eloquently about the near-extinction of house sparrows in London, England. He examines several explanations and adds the perspective of possibly more geographically restricted habitats for sparrows compared with other urban birds

[cobirds] House Sparrows - Boulder & metro area

2018-04-13 Thread kalistongue
Hello, I have also noticed less House Sparrows visiting my feeders/yard. I am used to seeing groups of 10-20 blowing through my yard for a few days, then disappearing, but then returning soon. I have lots of lilac bushes where they like to congregate. I think I first noticed their absence last

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-13 Thread Paul Barchilon
I haven't noticed any decline at my home in Boulder, they still pack my feeders year round. My feederwatch counts seem the same. With all that is going on with climate change, I sometimes fear we will be left with nothing but house sparrows and rock pigeons. They are certainly adapted to livin

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-12 Thread Diana Beatty
For what it is worth, I just did a regression analysis of House Sparrow numbers reported on the Colorado Springs CBC since 1950 to present. There is no evidence of a decline in numbers on the CBC. Diana Beatty Colorado Springs, CO On Mon, Apr 9, 2018 at 12:05 PM, Richard Trinkner < richardinbou

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread Richard Trinkner
Some personal House Sparrow data: Between 1996 and 2015, House Sparrows appear on 30.16% of my Colorado checklists. Between 2015 and 2018, they appear on only 13.44% of my Colorado checklists. They used to be very common bird for my backyard feeders. Between 1996 and 2015, House Sparrows were on

RE: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread 'Jean Stevenson' via Colorado Birds
: [cobirds] House Sparrows - Boulder & metro area The answer is that they have dispersed from their winter flocks for breeding.   This is an annual phenomenon.  Best, Nick Komar Fort Collins CO On Apr 9, 2018, at 11:48 AM, 'Hugh Kingery' via Colorado Birds wrote: Denver Audubon just r

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread Nicholas Komar
The answer is that they have dispersed from their winter flocks for breeding. This is an annual phenomenon. Best, Nick Komar Fort Collins CO > On Apr 9, 2018, at 11:48 AM, 'Hugh Kingery' via Colorado Birds > wrote: > > Denver Audubon just received a call from a woman in Lafayette with a un

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread Todd Deininger
In Longmont I noticed a big decline after the rains and flood of Sep 2013. On Mon, Apr 9, 2018, 11:48 AM 'Hugh Kingery' via Colorado Birds < cobirds@googlegroups.com> wrote: > Denver Audubon just received a call from a woman in Lafayette with a > unique subject: where have the House Sparrows gone

RE: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread 'Jean Stevenson' via Colorado Birds
. Jean Stevenson, Arapahoe County, east of Quincy Reservoir =J= From: 'Hugh Kingery' via Colorado Birds Sent: Monday, April 9, 2018 11:48 AM To: cobirds@googlegroups.com Subject: [cobirds] House Sparrows - Boulder & metro area Denver Audubon just received a call from a woman in Lafayette

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread Patrick O'Driscoll
Since last fall and through winter, I averaged 25-30 in/around my back yard in east-central Denver (off East Colfax). The past few weeks, the number is more like 10-12. I had assumed maybe some natural reason, like the rest going off to make nests and have babies elsewhere. Patrick O'Driscoll Denv

Re: [cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread Joe Roller
House Sparrow decline has been well-studied in England and India, and seems to be patchy, but world-wide. Here is a way to find relevant articles on the web: type in key words: *house sparrow population decline* eBird is a great data base for studying this, in the US and all over, so don't do wha

[cobirds] House Sparrows - Boulder & metro area

2018-04-09 Thread 'Hugh Kingery' via Colorado Birds
Denver Audubon just received a call from a woman in Lafayette with a unique subject: where have the House Sparrows gone? She says she used to have as many as 80, but now she sees only a pair or two, sproadically. They check out her yard and continue on somewhere else. Have any of you experience