I am holding a stunningly patterned male Harlequin duck just above the fast moving water of the Bow River. When the signal is given, I open my hands and he launches himself downstream to land in the whitewater. So beautiful.On Monday this week, I had the opportunity to help band Harlequin ducks on the Bow River here in Banff National Park. They are listed as a species-at-risk in Canada.
It was a beautiful, warm spring day that unfolded at a careful pace. Herding and netting ducks on a river requires tactical precision and co-ordination.
First you’ve got to string a “mist net” across the river. Then you need to get multiple people positioned, in boats and on shore, to gently move the birds downstream. Finally, at just the right spot, you’ve got to get them airborne so that they will fly into the net – and not over it!
We successfully netted a new pair of birds. Cyndi Smith, our Harlequin banding specialist, took measurements and attached brightly-coloured leg bands. Moments later, I helped release the ducks. When they head back to the west coast for the winter, they’ll become part of an ongoing effort to monitor the population.