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   Cliff Swallow
 
 Petrochelidon pyrrhonota
  UVU Campus
 Orem
, Utah
 June 2008
  
 by Wayne Whaley
 ©Wayne Whaley
   Cliff Swallow
 
 Petrochelidon pyrrhonota
  UVU Campus
 Orem
, Utah
 June 2008
  
 by Wayne Whaley
 ©Wayne Whaley
   Cliff Swallow
 
 Petrochelidon pyrrhonota
  UVSC Campus
 Orem
, Utah
 16 May 2007
  
 by Wayne Whaley
 ©Wayne Whaley

   

 Cliff Swallow
 Petrochelidon pyrrhonota

 Bear River MBR
 Box Elder Co., Utah
 27 Apr 2005

 by Dave Rintoul
 ©David A. Rintoul