[Ontbirds]Chimney Swift migration in London

Hugh Casbourn hughcas at execulink.com
Thu Sep 14 10:13:53 EDT 2006


LONDON SWIFTWATCH 2006 - REPORT NO. 5 - September 13

 

McIlwraith Field Naturalists of London have been monitoring chimneys in
London that are known to be or have been roosting sites for Chimney Swifts,
Chaetura pelagica.  This project, now in its third year, was organized as a
response to the province-wide decline in swift numbers identified by
Breeding Bird Atlas data.  From mid-August through September, participants
count the number of swifts entering the chimneys at dusk, preferably on
Sunday evenings.

 

Numbers peaked around September 2-4 at 2465 swifts in 10 chimneys. The
results of the most recent counts, carried out Sep 9-11, are presented
below. The number in brackets indicates the number of swifts counted the
previous weekend (Sep 2-4).

 

 

South Collegiate (Tecumseh & Belgrave)         246 ( 380)  

Kings College (Waterloo & Epworth)                2 (  18)

Riverside Drive greenhouses                      19 (  80)  

Ryerson School (Victoria & Waterloo)            433 ( 328)

Smith Fruit (S end of Maitland)                 540 (1260)

Emco (Nightingale & Dundas)                      70 ( 132)  

Kingsmill's (Carling, W of Richmond)            125 ( 128)  

Truck Driving School (Horton & Wellington)        4 (   5)  

Dorchester Apts (N Richmond)                     21 (  34)  

Elborn College                                    0 (   0)

First St Andrews Church (Waterloo & Queens)       0 (100*)

      * reported by Ellen Smout on Ontbirds

Labatt's garage (Grey, E of Richmond)             0 (not counted)

 

 

Total Swifts Counted: Weekend 1 (Aug 12-14)    261  (in 14 chimneys)

                      Weekend 2 (Aug 19-21)    495  (in  9 chimneys)

                      Weekend 3 (Aug 26-28)   1096  (in  8 chimneys)

                      Weekend 4 (Sep 2-4)     2465  (in 10 chimneys)

                      Weekend 5 (Sep 9-11)    1460  (in  9 chimneys)

 

 

In addition, 2 Common Nighthawks, Chordeiles minor, were seen.

 

Hugh Casbourn

Reporting for London SwiftWatch participants

 



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