Date: 4/22/26 6:08 pm
From: Peter Pyle via groups.io <ppyle...>
Subject: Re: [SFBirds] Cliff Swallows around Crissy Field - request
Some info from 2021, in case it helps.

Cook's Petrels now being seen just 20 miles off Ft Bragg (see my post
from this morning!).

Cheers, Peter

From: Anna Klafter <annaklafter...>
Date: Fri, 28 May 2021 20:57:18 -0700
Subject: Re: [SFBirds] Cliff Swallows at Crissy Field. Where?
To: Dan Harris <dh1236...>
Cc: Peter Pyle <ppyle...>, Joel Perlstein
<joelperl...>,
        SF Birds <SFBirds...>

Thanks all. I got a nice look at Thompson Reach on my dog walk this
evening. One nest was different than the others and it had some loud
babies- are these Cliff swallows as well or someone else? See first pic

On Fri, May 28, 2021 at 5:18 PM Dan Harris <dh1236...> wrote:

Also, one or two nests on the buildings east of the Mason Street and
Crissy Field Avenue intersection.
Dan Harris
San Francisco

On Fri, May 28, 2021 at 4:28 PM Peter Pyle <ppyle...> wrote:

Hi Joel -

There's a small colony on the buildings to the north of the Thompson
Reach mouth, just the other side of the bridge (Doyle Drive) from
Quartermaster Reach.
https://ebird.org/checklist/S87559933

Cheers, Peter

At 03:13 PM 5/28/2021, Joel Perlstein wrote:
>Does anyone know where at Crissy Field the Cliff Swallows are nesting?
>--
>Joel Perlstein
>San Francisco
>



On 4/22/2026 5:23 PM, Dominik Mosur via groups.io wrote:
> Hello Presidio area birders,
>
> A visiting birder captured some good images of Cliff Swallows
> appearing to be collecting mud for nests on 4/9/26.
>
> Photos can be seen on this checklist:
> https://ebird.org/checklist/S319240704
>
> This species is a very localized breeder in SF and since the
> extirpation of the Lake Merced Colony some 10 years ago the Presidio
> is the only place where they are known to breed in the last few years.
>
> Last year a couple of nests were built on some of the vacant buildings
> around Fort Scott but these did not appear to be in use so far this
> year on a visit last week and this species remains unconfirmed so far
> this year.
>
> For anyone birding around Crissy Field/Quartermaster Reach keep an eye
> out for Cliff Swallows coming to the marsh at low tide to gather mud
> and see if you can track down where they are taking the material too.
>
> Thank you,
>
> Dominik
>



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