The book:

*The moth snowstorm: nature and joy*.  Michael McCarthy 
<https://www.nyrb.com/collections/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:
>
> 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 58.21% of my backyard checklists. *So far in 
> 2018, I haven't had a single House Sparrow*.  Not one.  I've completed 26 
> checklists for my yard this year: not a single House Sparrow.
>
> In Boulder, House Sparrows seem to be hanging on in small numbers in very 
> urban areas. I walk to work most mornings in central Boulder. I used to 
> nearly trip on House Sparrows. I still see them often (72% of my morning 
> walk checklists), but now I have to listen carefully for their call and I 
> generally only get a small handful of individuals.
>
> On the center-north Boulder CBC route on which I counted last December, we 
> only found sparrows in only two locations, whereas in past years they were 
> extremely common.
>
> Here's an article about their decline: 
> https://www.sciencedaily.com/releases/2017/10/171003111056.htm.
>
> I've also read that they may be particularly susceptible to cell phone 
> tower radiation, and that their bug food source may be susceptible to such 
> radiation as well.
>
> Cheers,
>
> Richard Trinkner
> Boulder
>
>
>
> On Mon, Apr 9, 2018 at 11:48 AM, 'Hugh Kingery' via Colorado Birds <
> [email protected] <javascript:>> wrote:
>
>> 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 experienced a diminishing numbers of House Sparrows?
>>
>>
>> Hugh Kingery 
>>
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>

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