The Chestnut-sided Warbler is known for its namesake rusty-brown flanks, however these are lost during the non-breeding season, leaving only the more subtle tones of lemon-lime on its back and wings. More social outside the breeding season, Chestnut-sided Warblers often form mixed foraging flocks with other species, including other warblers and resident tropical species.
Chestnut-sided Warbler
Setophaga pensylvanica
Photo:
The State of Canada's Birds is presented in partnership by Environment and Climate Change Canada and Birds Canada.
Chestnut-sided Warbler
Status and Trends
Distribution
Methods
The State of Canada's Birds is presented in partnership by Environment and Climate Change Canada and Birds Canada.
Did you know
Summary
Trend
Little Change
Confidence: High
Goal
Within Goal Range
The Chestnut-sided Warbler is widespread and common throughout its breeding range in Canada, from central Saskatchewan east to the Maritimes. It winters from southern Mexico to northern South America, and in the Caribbean. There are approximately 13 million individuals in Canada, which represents 72% of the global population and a high degree of responsibility for Canada. The Canadian population of Chestnut-sided Warbler has shown little change relative to 1970 based on the Breeding Bird Survey. Confidence is high because there is good coverage of its breeding range and precision is high. The national population of Chestnut-sided Warbler is within its goal range.
Migration Strategy
Long-distance
Canadian Responsibility
Population Estimates
Breeding
13,000,000
Annual
13,000,000
Global
18,000,000
Related readings
Summary report
View the report
Trends from this species and others are rolled up into The State of Canada’s Birds Summary Report. Follow the link below to view the report, learn more about birds in Canada, and see how we can all help birds.
This species is included in the following analysis groups for the report:
Long-Distance Migrants
Forest Birds
Environment and Climate Change Canada and Birds Canada. 2024. The State of Canada’s Birds – Chestnut-sided Warbler. Data accessed from NatureCounts, Birds Canada.
https://doi.org/10.71842/d7ya-f065
The State of Canada's Birds is presented in partnership by Environment and Climate Change Canada and Birds Canada.
Did you know
The Chestnut-sided Warbler is known for its namesake rusty-brown flanks, however these are lost during the non-breeding season, leaving only the more subtle tones of lemon-lime on its back and wings. More social outside the breeding season, Chestnut-sided Warblers often form mixed foraging flocks with other species, including other warblers and resident tropical species.
Distribution and Occurrence
16570
Loading...
Get Involved
Citizen Science is vital to monitoring birds in Canada. Participating in programs like the ones below helps monitor this species.
Become a Citizen Scientist today!
Follow the link below to learn about more programs that you can participate in to help monitor birds in Canada.
Learn more
Related readings
Summary report
View the report
Trends from this species and others are rolled up into The State of Canada’s Birds Summary Report. Follow the link below to view the report, learn more about birds in Canada, and see how we can all help birds.
This species is included in the following analysis groups for the report:
Long-Distance Migrants
Forest Birds
Environment and Climate Change Canada and Birds Canada. 2024. The State of Canada’s Birds – Chestnut-sided Warbler. Data accessed from NatureCounts, Birds Canada.
https://doi.org/10.71842/d7ya-f065