bird migration

A blackbird feeding nestlings in a nest built on top of a rusty rake. A red wooden wall is in the background and a white downspout helps to support the nest.

Timing Mismatch is Resulting in Fewer Birds

Caitlin Dempsey

A study has found that shifts in the timing of spring seasons, linked to climate change, are impacting bird breeding patterns and leading to less offspring.

Two small birds sitting on an electrical wire with the blue sky behind them.

Mapping Small Bird Migrations

Mark Altaweel

Our understanding of bird migrations is changing as a result of tracking devices on birds, especially for small bird species.

A group of Canada geese swimming in the water. The sun is shining and some vegetation can be seen.

Canada Geese Migrate Less from Urban Areas

Caitlin Dempsey

With the expansion of urbanization, more Canada geese are becoming year round residents instead of migratory.

An analysis of 24 years of radar data shows a shift to earlier spring migrations, particularly for birds at higher latitudes where regions are warming more quickly. Figure: Horton et al., 2020.

Spring Bird Migration is Happening Earlier for Some Birds

Caitlin Dempsey

With changes in temperature due to climate change, researchers looking at  24 years of radar data from the National Oceanic and Atmospheric Administration (NOAA) have found that migrating birds were more likely to arrive at certain stops earlier than they would have twenty years ago. 

Animated Map Shows Animal and Bird Migrations

Elizabeth Borneman

Scientists modelled animal migrations based on global climate change patterns and created a map that showed potential future migrations of different species in North, Central, and South America.