Cross Canada Chronicles – II
The Delta Marshes
June 6: If you thought the prairies were nothing but, well, prairie, think again. Manitoba has a couple of large lakes, one of which, Lake Manitoba, has extensive marshlands on the south end, a magnet for birds of all kinds.
On this hot, sunny June day, I spent the afternoon at the Delta marshes. I was a little late for the spring migrations—the delta is a major staging area— but there was still plenty of action.
Common Terns: Aerial Acrobats
Dozens of these striking birds were out on their daily hunt as I approached the marsh. These birds, fast, acrobatic and endlessly fascinating, will flit back and forth high in the air until they spot their prey in the water, then hover like a helicopter, giving a distinctive chatter before plunging straight down to swoop fish out of the water.
Although incredibly fast, they have a graceful choreography in flight. I’ve included several shots here to try to demonstrate this. Notice the beak pointing straight down as the bird locks on to the prey’s position.
Juveniles are easy to spot as the head and beak colouring
has not yet matured.
The grace, form, line and movement in the shape of this bird
is nothing short of calligraphic
Eager to reach open water at the marsh, I was carrying my photo equipment down a gravel path—the only path—through the wetland out to the lake. About half way down the way, I noticed a small killdeer. It came up quite close to me, and then began behaving oddly. Instead of skittering around and keeping its distance, as killdeers normally do, this one began flopping on the ground, one wing looking oddly out of place, as if it were broken.
Killdeers are masters of deception. At this time of year, their nests, lying completely open on the ground, are more vulnerable than most to predators. But our killdeer here has a few tricks up her sleeve to help even the odds. To begin with, her eggs are well camouflaged to look like rough stones. Indeed, totally oblivious, I had passed within less than a meter of the nest, completely unaware it was even there.
Once mother killdeer thinks that her nest is in danger of being discovered, she begins to feign a wing injury in an attempt to lure would be predators, hopeful of the easy pickings of an injured bird, away from her nest. And that’s exactly what our little killdeer was doing here. Once danger has passed, the killdeer miraculously ‘recovers’, and returns to her nest.
I was able to quickly photograph, and get a few video shots of the behaviour. (Note that the photo of the nest was taken with a telephoto lens. Once I had realized how close I had been, and saw how the bird was reacting, I removed myself from the area.)
Killdeer Deception: the video
Other birds of the marsh
Here are a few of the many other birds spotted at the marsh:
Yellow-headed blackbird being territorial
Red-winged blackbird – male
Red-winged blackbird – female
Canada Goose and her not-so-small-anymore goslings