Hi Everyone
Today, November 25 I spent most of the morning birding Lake
Deschenes-Ottawa River. It was a great morning and I observed 226
Red-throated Loons (counted them all!) in 4-5 flocks with a few singles
too. At first the loons were resting but as the weather started to clear, a
small number began to take flight and fly around between Britannia Pier and
Deschenes Rapids before settling back on the lake. As the morning
progressed the visibility improved and though distant you could see them
well and they appeared to be all winter adults. Since the early 1980s I've
encountered  RTLO fallout/flights a number of times on Lake Deschenes,
(1983-2010) between October 27 to November 23 with the largest fallout,
2000-3000 birds on November 12,1984. Today's fallout/flight is the latest
date, the previous late date for a Red-throated Loon fallout/flight was on
November 23,2010 when Tom Hanrahan and I observed a flock of 120+ on Lake
Deschenes. The origin of these fallouts/flights is still somewhat of a
mystery. Are they birds coming out of Hudson/James Bay due to a freeze up
or from the St.Lawrence River? I'm sure weather plays an important role
with the combination of low cloud ceiling, fog and precipitation.

Good birding,
Bruce

Directions: There are a number of vantage points along the south shoreline
of Lake Deschenes/Ottawa River including Shirley's Bay Boat Launch, Dick
Bell Park, and Britanna Pier. All accessible off Carling Ave.

Bruce Di Labio
P.O.Box 538
Carp,Ontario
K0A 1L0
613-715-2571

Send Ottawa Citizen Bird Column Reports/photos to dilabiobird...@gmail.ca

http://www.brucedilabio.blogspot.com
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