Friday, June 15, 2012
We found a Pyrrhuloxia at the bird feeder in Salinero, downstream along the Rio Grand from Falcon Dam. In early March, when we visited Texas, Pyrrhuloxia flocks begin to break down as the males become aggressive and territorial. Curiously, where their ranges overlap, Pyrrhuloxia and cardinals do not show interspecific conflicts. Due to habitat destruction, Pyrrhuloxia numbers have declined in the past fifty years (Tweit and Thompson 1999).
Posted by Dan Tallman at 9:16 AM