Invasive species: Rainbow Trout
Rusty Blackbirds: Going, Going, Hopefully Not Gone
Rusty Blackbirds, considered common to abundant one-hundred years ago, have declined precipitously during the last four decades. Estimates of decline vary between 85 percent, based on Christmas Bird Counts, and 97 percent, based on Breeding Bird Survey results along the southern margin of the Rusty's breeding range. The losses are staggering. Uncertainty is high, Rusty Blackbirds are difficult to find and count during winter. Christmas Bird Counts find small numbers. Breeding Bird Surveys barely penetrate their northern breeding range. But everyone agrees that the formerly abundant Rusty Blackbird is now uncommon to rare almost everywhere it is found, and the species is in trouble.
Hoover Happenings: Fall 2010
Over the years I have recorded 254 bird species at Hoover Reservoir. Others have recorded additional species. Jim McCormac rightfully lists Hoover Reservoir as one of the top birding locations in Ohio in his book Birds of Ohio. The Audubon Society has identified the area at the north end of Hoover Reservoir as an Important Birding Area (IBA).
Delaware County's Ospreys in 2010
Dick Tuttle reports on the 2010 nesting season for Ospreys in Delaware County. The success story continues!
Invasive species: Zebra Mussel (Dreissena polymorpha)
We have been featuring invasive species in the Song Sparrow for over five years without mention of the Zebra Mussel (Dreissena polymorpha) which arguably could be the poster child for invasives in Ohio, at least to capturing public attention.