Last year someone associated with the DNR(?) posted about non-native invasive cattails that have been pushing out the native variety. He said that the invasive species rendered the marsh unattractive to Yellow-headed Blackbirds. I'm sorry but I don't recall his name.
Kurt On 5/10/12 3:15 PM, "Al Schirmacher" <[email protected]> wrote: > Gail's post reminded me of a dual observation. > > One, that YH Blackbirds, once a relatively easy find on Sherburne Refuge, have > become increasingly difficult. > > Twi, during my annual trek west to Big Stone yesterday, we did not encounter > YH Blackbirds until 106 miles into the trip - which is bizarre. > > Anyone know what's happening, and why? > > Thanks. > > Al Schirmacher > Princeton, MN > > Sent from my iPhone > ---- > Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net > Archives: http://lists.umn.edu/archives/mou-net.html ---- Join or Leave mou-net: http://lists.umn.edu/cgi-bin/wa?SUBED1=mou-net Archives: http://lists.umn.edu/archives/mou-net.html
