I have had the good fortune to live in the same habitat for 21 springs now.
Over that time the dawn chorus has diminished greatly although the immediate
habitat has stayed the same. It is still pretty rich and there are variety
of birds but the overall volume and numbers are lower. Of course this is a
totally subjective measurement, how loud and full the dawn chorus is but,
like the frog chorus, it is much lower volume. The vireos are no longer
here, the yellow warbler not heard in 4 years, black headed grosbeaks much
fewer. No swallows at all this year. Most of the resident birds seem
stable, towhees, chickadees, song sparrows it's the migrants that have
declined in my area.



Rob Sandelin

Naturalist, Writer, Teacher

Snohomish County