Robert Pfeifer

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
The Ring Ouzel (Turdus torquatus) has an arctic–alpine distribution, with small populations also occurring at the higher altitudes of the low mountain ranges north of the Alps. The populations of the Alps and mountain ranges are classified as the subspecies T. torquatus alpestris, and those of the northern populations as T. torquatus torquatus. Since birds(More)
  • 1