Birdwatching data reveals surprising bird species trends in Iowa.
The article lists the birds seen in Iowa during the summer of 1994 by Stephen Dinsmore and others. It was used to support a report by the Iowa Ornithologists' Union.
Birdwatcher Jim Dinsmore's Spring 1999 sightings reveal surprising avian diversity.
Spring 1993 Bird Sightings Reveal Surprising Trends in Iowa's Ornithology.
Birdwatcher Jim Dinsmore's 1998 summer field report reveals rare bird sightings.
