Bird Migration on Mud Lake in Ottawa (Ontario, Canada)

A very common Song Sparrow near Mud Lake during fall migration

In Ottawa there is an amazing place called Mud Lake. Mud Lake is located not far from the central part of the city, close to the Ottawa River. This area is truly unusually rich in a variety of all kinds of animals: from amphibians, snakes and turtles to a remarkable diversity of mammals. The lake is also part of a protected area called the Britannia Conservation Area. It is managed by National Capital Commission (NCC).

But this territory has become special fame as a transit corridor for a great number of birds that make regular migrations from their breeding habitats in the northern forests to wintering sites in the southern hemisphere. Mud Lake is part of the Lac-Deschenes – Ottawa River Important Bird Area (IBA). This important bird area is really exceptional because it serves as a stopover place for a very intensive migration of birds nesting in the Canadian taiga, both in spring and autumn.

Throughout the year, naturalists love to visit the Mud Lake area as a place to observe many types of wildlife in a city setting. But especially many people – naturalists, birdwatchers and photographers – gather here during the periods of bird migration: in spring – from April to early June, and in autumn from mid-August to October. Thousands of naturalists come to Mud Lake to watch one of the most amazing natural phenomena – the seasonal bird migration.  

Now one of the migration peaks of small passerine birds is observed – when long-distant neotropical migrants which fly from the northern forests into the jungles of Central and South America to spend time there, when the northern forests will be covered with winter frosts and sheltered with dense snowdrifts. Migratory birds have not yet molted and wear unsightly faded plumage, but some of them are already sporting mating attire.

The small ridge separating the lake from the Ottawa River is exactly where many waves of migrating birds stop. For an hour of observation, on some days, you can see from 30-40 to 70-90 bird species. The birds hide and feed in the bushes growing on the slopes of the ridge that rolling to the banks of the Ottawa River, in the crowns of tall trees, as well as among the needles of pines, firs and spruce trees growing around the lake. There are especially many birds after rains and winds, when harsh weather push brave migrants wait out the bad conditions in the bushes. Birds are not only wait they inspect all vegetation around searching for diverse insects and other invertebrates hidden in the branches and under the bark of trees.

Every naturalist will be “rewarded” with unique moments of observation of migratory species, gathered in one place… Hurry up to say goodbye to the brave passengers flying away for the winter and wish them all to come back to their breeding grounds in spring …

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