Friday, December 1, 2023

Get To Know This Yr’s Featured World Migratory Chook Day Species: Northern Waterthrush

Northern Waterthrush

Important Indicators

Widespread identify: Northern Waterthrush
Latin identify: Parkesia noveboracensis
Anishinaabemowin identify: Ozaawibineshii/Bineshiins7 (Warblers)
Vary: The Northern Waterthrush will be discovered most abundantly in Canada’s northern forest alongside lakes and rivers, and in bogs and swamps throughout their breeding season. It has a breeding vary that stretches from Newfoundland to the west coast of Canada, touching most provinces and territories, however not Nunavut1. Migration occurs at evening, the place these birds journey north to Canada from Central America and northern South America2 within the spring, and reverse this sample within the late summer season and fall.
Common Lifespan: 8.9 years3.
Dimension: Size of 12 to 14 cm with a wingspan of twenty-two.5 to 25.5 cm, usually weighs 14.7 to 19.2 g4
Canadian inhabitants estimate: 5,000,000-50,000,000 adults1

The Information

The Northern Waterthrush is a part of the warbler household; it’s a bigger warbler that has a comparatively lengthy, heavy invoice and a flat head2. Each the women and men of this inhabitants look alike. They’re darkish brown on their high half and buff-white with darker streaks on their decrease facet. It possesses a definite pale yellowish line that extends from its beak to the again of its head, passing simply over the attention. Its wings and tails seem to look darkish brown from above2.

Northern Waterthrush is similar to Louisiana Waterthrush, which breeds in excessive southern Ontario6 and Quebec, and which is the one different species within the genus Parkesia. The Northern Waterthrush prefers areas near our bodies of water. Through the winter, the species will be discovered within the tropical mangroves of Central and South America3.

These birds typically nest in small, hole, moss-covered stumps, usually near water5. The females will normally lay 4-5 eggs, which take 12-13 days to incubate. These younger birds will go away the nest roughly 10 days after hatching and might fly a couple of week later5.

The Story

The Breeding Chook Survey which has studied North American Breeding Birds and their distribution from 1970-2016 means that populations have elevated because the 1970’s however poor protection of the northern portion of the breeding vary reduces the reliability of those information1. The inhabitants of Northern Waterthrush is taken into account to be secure and of low administration concern, primarily inside their breeding areas throughout Canada. Nevertheless, as a result of human actions on their winter vary within the mangrove forests of Mexico, there was an elevated threat of their migrating inhabitants declining2.

Additionally, regardless of degradation of habitat and pesticide threats, Northern Waterthrush populations stay secure. Local weather change fashions additionally predict declines in Northern Waterthrush populations. Nationwide Audubon predicts a web lack of seven % in its vary primarily based on a two-degree temperature rise, and a 22 % loss primarily based on three levels improve4. Because the Northern Waterthrush is a resident of the boreal forest primarily, an space the place warming is predicted to be extra extreme than many different areas, these situations are very actual and doable.

What you are able to do

Although presently the inhabitants is secure globally, these birds might be delicate to habitat loss, pesticides, in addition to the continued results of local weather change. Drainage of swamps for agricultural and wetland growth will scale back the breeding habitat for these birds. In addition to spraying of pesticides, equivalent to aerial spraying for the spruce budworm can kill these birds instantly, and scale back the biomass of their prey3. Local weather change threatens to dramatically shrink the species vary primarily based on situations of two or extra levels of common temperature improve.

All issues thought of, advocating for the conservation of wetlands and swamps in Canada, in addition to the discount of the usage of aerial pesticides, and conserving nature, usually, are nice methods you possibly can assist to help the Northern Waterthrush. Supporting efforts to struggle local weather change and scale back international warming are different methods of serving to the Northern Waterthrush.

You can too get entangled with a neighborhood Chook Staff in your group to work in direction of turning into Chook Pleasant Metropolis Licensed or host and take part in an upcoming World Migratory Chook Day occasion close to you! You can too contact your Metropolis Council and urge them to affix cities like Vaughan, Barrie, and Vancouver, to proclaim their help of World Migratory Chook Day.


1 Surroundings and Local weather Change Canada. 2019. Northern Waterthrush (Parkesia noveboracensis) content=Thepercent20Northernpercent20Waterthrushpercent20ispercent20an,eastpercent20topercent20thepercent20westpercent20coast

2 Seattle Audubon Society, 2021.

3 Harris, M. 1999. “Seiurus noveboracensis” (On-line), Animal Variety Net.

4 The Cornell Lab. 2023. All About Birds, Northern Waterthrush.

5 Audubon. Information to North American Birds, Northern Waterthrush.

6 Ministry of the Surroundings, Conservation and Parks. 2014. page/louisiana-waterthrush#:~:textual content=Inpercent20Canadapercent2Cpercent20thepercent20Louisianapercent20waterthrush,therepercent20haspercent20neverpercent20beenpercent20confirmed

7 Riddell, C. 2019. An Anishinaabe Ethno-ornithology of Wabaseemoong Impartial Nations. Ridell School of Surroundings, Earth, and Assets. Pure Assets Institute, College of Manitoba.


This undertaking was undertaken with the monetary help of the Authorities of Canada by way of the federal Division of Surroundings and Local weather Change.

Ce projet a été réalisé avec l’appui financier du gouvernement du Canada agissant par l’entremise du ministère fédéral de l’Environnement et du Changement climatique.

Environment and Climate Change Canada

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