Chimney swifts

Chimney Swift Count Nights at NPD

View a Count Night with us!

Ever since 2010, when Chimney Swifts were discovered roosting in the NPD stack, CNL has voluntarily participated in the National Roost Monitoring Program. These evening counts are conducted across Canada on five pre-determined spring dates to help us monitor and understand Chimney Swift spring migration in Canada. 

Each Count Night will be held around dusk, as that’s when the Chimney Swifts return to the stack to roost.

Register for one of the Count Nights below:

Thursday, May 17    8:40 p.m.
 Wednesday, May 23   8:45 p.m.
 Sunday, May 27  8:50 p.m.
 Thursday, May 31  8:55 p.m.
 Monday, June 4  8:55 p.m.

Once registered, you’ll receive an email with more details on the event.

More about the Chimney Swift at NPD

The Chimney Swift is a small bird feeding on insects and can be identified in flight by its cigar-shaped body where the tail is barely visible as oppose to swallows. This bird spends almost its entire life in flight and when it lands, it cannot perch because their feet are designed for clinging to abrasive vertical surface. Every year, thousands of Chimney Swift fly by the NPD stack, stay for few nights, and continue their migration all the way to Manitoba. A few hundred individuals, mainly unpaired birds and juveniles, stick around the entire summer until the fall migration where the number increases again and drop as the birds leave Canada for the warm weather of South America.

More about the NPD Closure Project

Nuclear Power Demonstration (NPD) made history in 1962 when it generated electricity from nuclear power for the first time in Canada. After 25 years of producing clean energy and serving as a training facility, NPD ceased operations in 1987. Now, CNL is proposing to safely decommission the NPD facility to complete the closure of the site.

Registration Form

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