A Continent-wide Chimney Swift Roost Monitoring Project


Bayside, TX

  • Number of swifts counted: 13
  • Time (and time zone): Central Time Zone (8:28 PM to 8:41 PM)
  • Date: 7-31-2011
  • Location: side yard on north shore of Copano Bay
  • Address: city, state/province: 1110 First Street, Bayside, Texas 78340-0035
  • Broad description of the site, e.g. school, warehouse, residence, Chimney Swift Tower, etc.: Homemade tower, see attached (no green plants now-drought conditions).
  • Weather conditions may also be reported : clear skies, SE wind 12-16 mph, no rain

Pittsburgh, PA

Tonight, 8/5/11, I counted 147 Chimney Swifts going into the chimney of the printing place behind me. Process Reproductions, has the old industrial buildings across the alley from where I live. I've lived here for 19 years and have never seen anything come out of the 100 foot tall, brick chimney that the birds are roosting in. Whatever business ever used that chimney is lost to the ages and the printing plant, obviously, doesn't need it. Perfect for the birds.

Elkhart, IN

August 5, 2011
Elkhart, Indiana
The old Rice School chimney
485 plus swifts
We observed between 8:35 and 9:30 pm
sundown was about 8:55
weather was partly cloudy, dry and warm, about 80

August 6, 2011
Elkhart, Indiana
The old Strauss pie factory chimney
315 swifts
We observed between 8:35 and 9:25 pm
sundown was about 8:55
weather was partly cloudy, dry and warm, about 80
Doris Stickel and David Stokely

Aberdeen Proving Ground (Edgewood Area), MD

Number of Swifts: 176
Time: 7:43 EDT - 8:45 EDT
Date: August 5, 2011
Location: Hoyle Fitness Center, Building E4210, Aberdeen Proving Ground (Edgewood Area), Maryland 21010
Google Map link: http://alturl.com/o7jkt
Description: Old chimney on southwest corner of stone building. Building is World War II era or earlier.
Weather: Temp 80 F, humidity 76%, wind 8 MPH out of the south, visibility 9 miles, partly cloudy.

Tawas City, MI

~200 Chimney Swifts
between 9:15pm and 9:25pm Eastern Daylight Time
August 5, 2011
Corner of US-23 and M-55
Tawas City, MI USA
50'+ high brick chimney (8' x 8' in cross-section) attached to Tawas St. Joseph Hospital
Weather: 9 PM Aug 05, Temp 73F (23C) Dew Pt. 66F (19C) Relative Humidity 88%, Barometer 29.96" of Hg (1014hPa) Wind from the SE @ 3mph Visibility 10mi with very high scattered clouds above 12K feet.
The swifts behaved differently tonight compared to previous years. We began around 8:45pm trying to locate the majority of swifts in our small town. We found around 15 by their twitter calls. Following them, we guessed the chimney they might use, and found only four drop in....the remaining ones left the area.
As darkness approached(sunset ~9pm) , we left this (court house) chimney.
While passing by our hospital about 1/2 mile from the just mentioned chimney we heard twittering again, and tried in the near darkness to see the birds. From our vantage point 150 m from the chimney, w/o binoculars, we could see only single birds drop occasionally into the chimney. Using binoculars, we found they were dropping in silently in groups of at least 10 at a time, so fast we could only estimate.
In past years, the birds announced their presence with great noise. Tonight, they made almost no noise at all.

When the light was good, we saw at most 10 birds at any one time. Where the huge group of birds came from that we saw drop into the hospital chimney, I have no idea.

Larry VanWagoner

Austin, TX

August 5th 8:15-8:45p
4311 Sinclair Austin Tx 78756
Home w/brick chimney and swift tower
1 swift entered tower at 8:35pm (only swift seen)
Also saw 1 eastern screech owl (drinking at water), 5 white wing dove, 1 common nighthawk and estimated 1550 purple martins (we are on a major flyway to the Highland Mall roost, they gather directly over our house from the southwest, then move northeast to their roost)
This is the lowest count of swifts we have had in years, no nesting attempt in the chimney this year, only the tower.  We plan to monitor the Shoal Creek tower tonight or tomorrow night

August 6, 2011
Swift tower, 4000 block Jefferson along Shoal Creek, Austin Tx
14 swifts entered tower, last at 8:41p
Also observed:
1 common nighthawk
1 mockingbird
25 mourning dove
2 whitewing dove
3 duck sp
appx 474 purple martins

Mark Wilson
Dana Kuykendall

Sioux Falls, SD

Chimney Swift count--
55 birds
9:00 pm
August 6th
Location- Sioux Falls SD 43 degrees 32.624' N 96 degrees 42.634' W
Brick chimney on warehouse
Temp. 78, wind- calm, partly cloudy
Mick Zerr, Sioux Falls Bird Club

Lyle, WA

3 Vaux's Swifts
8-9 pm PST
Lyle WA 98635
Elementary school chimney approx. 40 ft tall
Weather: Clear, light wind, Temps mid 70's
I know this is a small number but in the spring there are a couple of hundred that roost in the chimney. I've been casually watching the chimney for a couple of years and it seems that we have a large spring migration and very few during the fall.  I'll try again in September to see if anymore show up.

Jason Ocker

St. Joseph, MO

On August 8, 2011 at 9 p.m. I witnessed around 500 Chimney Swifts descend into a large brick chimney. The site is located at 18th & Highly at the Webster Center (Formerly Webster School) here in St Joseph MO.