Subject: [Tweeters] Really: violet-green and barn swallows.
Date: Jun 22 15:39:34 2012
From: Blake Iverson - coopershwk at gmail.com


Send some up here then. :-)

---

Blake Iverson
Northwest Mosaic Canary Aviary Marysville,WA
https://sites.google.com/site/nwmosaiccanary/
On Jun 22, 2012 2:07 PM, "Ted Ryan" <coffeemonkey101 at comcast.net> wrote:

> All the lost swallows are in our neighborhood.
>
> Ted Ryan
> Fredrickson, WA
>
> On Jun 22, 2012, at 12:31 PM, Blake Iverson <coopershwk at gmail.com> wrote:
>
> I've also noticed a change in visible bird populations. Even more so with
> cliff swallows than anything. I think a combination of how structures are
> built these days and increasing pressure from starlings and house sparrows
> is having a negative effect on some species and causing others to adapt by
> changing their preferred nesting habits that we interpret as population
> decline. It's been hard for me to have a good grasp of it in my
> neighborhood since I have a nesting pair of merlins which keep swallows out
> of the area or keep feeding evaluations very high above the merlins.
>
> No doubt the maturing of landscapes on some people's property forces a
> change in nesting habits for these birds as they probably find it too risky
> to nest and forage where they're at high risk for attack from accipiters
> and it invites the pests like sparrows and starlings to launch attacks. A
> dairy farm or other farm set up could arguably provide the same dilemmas
> but the size of the building etc allows for room to spread out.
>
>
> ---
>
> Blake Iverson
> Marysville,WA
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