[Tweeters] seasons of change

[Steve Hampton]

Bird responses to climate change are just beginning, but a lot is already
there to see. See my earlier reply to Dennis about tanagers. Also, below is
a link to my blog post about southern species expanding north. This also
includes the Audubon projection maps, which are pretty accurate and already
happening for many non-migratory species.

https://thecottonwoodpost.net/2020/03/09/the-invasion-of-the-pacific-northwest-californias-birds-expand-north-with-warmer-winters/

There are also species declining in the south (especially in deserts).

It seems that, so far, many non-migratory species and short-distance
migrants are shifting ranges quickly, especially if they are flexible wrt
food sources and not dependent on a single food source (e.g. oaks, which
aren't really migrating). Many long-distance migrants, however, don't seem
to be really changing their behavior that much. They are perhaps quite
hard-wired.



On Wed, Oct 13, 2021 at 1:02 PM Steve Loitz <steveloitz at gmail.com> wrote:


> The extraordinarily hot summer in the East Cascades seems to have

> contributed to earlier-than-typical vertical migration of some summer

> mountain species moving down into the Ellensburg area. The very hot summer

> and early snowmelt -- and resultant drying of mountain meadows -- depressed

> insect hatchings in much of the E Cascades. (It's possible that forest

> fires contributed to pushing the birds around.) I last noticed a similarly

> earlier-than-normal vertical migration in fall 2015, which was a very dry

> summer after a paltry snowpack.

>

> Steve Loitz

> Ellensburg, WA

>

> On Wed, Oct 13, 2021 at 12:24 PM David B. Williams <wingate at seanet.com>

> wrote:

>

>> Greetings. We all know that climate change is jostling our seasons. I was

>> wondering if there are particular birds that are being more impacted by the

>> shifts, such as when flowers bloom, when bugs are out pollinating, hotter

>> temps, etc.

>>

>> Any thoughts would be great.

>>

>> Thanks kindly,

>> David

>> ~~~~~~~~~~~~~~~~~~~~~~

>> David B. Williams

>> *Twitter: @geologywriter*

>> Website: www.geologywriter.com

>> *Free weekly Newsletter: https://streetsmartnaturalist.substack.com/

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>> I live and work on the unceded land of the dxʷdəwʔabš (Duwamish) and

>> Coast Salish peoples. I acknowledge and honor with gratitude the land

>> itself and those who have inhabited it since time immemorial.

>>

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-- 
Steve Hampton
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