Dear
Journey North,
The large wetlands of the nesting grounds are
still frozen (as of May 5). The Hay River is breaking up but the
Slave River is still frozen
at Fort Smith. Lower water conditions should not create an increased
predation problem for the adults but it will mean that eggs and
young chicks are more vulnerable to predation. Most of the breeding
birds have arrived and with the later spring this year they will
get down to nest building as the water opens up. Nest initiation
dates will be less strung out and will be initiated over a shorter
time period this year.
I
am off to Fort Smith on
May 12. From where I am based in Saskatoon,
SK, it's 1,000 KM to Fort Smith, near the the breeding grounds
in
Wood Buffalo National Park. (For the cranes, 1,000 KM is about
a 3-day flight.) I
will be starting aerial surveys to look for the nesting pairs beginning
around mid May. I hope that we will have as many nests as last
year. And I hope that we will have warm weather in June when the
eggs begin to hatch, so the chicks have the greatest possible chance
of survival.
Brian
Johns
Wildlife Biologist
Canadian Wildlife Service
Saskatoon, Saskatchewan, Canada
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