Tracking a Changing Climate

Wilson's Warbler: arriving later

In recent years, Wilson's Warblers have tended to arrive later than average.

Swainson's Thrush: no change

So far, there has been no detectable change in Swainson's Thrush arrival dates over time.

Annual arrival dates to Palomarin, 1980-2016

Orange-crowned Warbler: arriving earlier

In recent years, Orange-crowned Warblers have tended to arrive earlier than average.

Fox Sparrow: no change

So far, there has been no detectable change in Fox Sparrow arrival dates over time.

Golden-crowned Sparrow: arriving earlier

In recent years, Golden-crowned Sparrows have tended to arrive earlier than average.

Hermit Thrush: arriving earlier

In recent years, Hermit Thrushes have tended to arrive earlier than average.

Ruby-crowned Kinglet: arriving earlier

In recent years, Ruby-crowned Kinglets have tended to arrive earlier than average.