Changes in breeding population sizes of Double-crested Cormorants Phalacrocorax auritus in the Humboldt Bay area, California, 1924–2017
    
    
    
      Authors
      PHILLIP J. CAPITOLO1*,2, HARRY R. CARTER2†, JULIE L. YEE3, GERARD J. McCHESNEY4, MICHAEL W. PARKER4,5, RICHARD J. YOUNG2,6, RICHARD T. GOLIGHTLY2 & W. BRECK TYLER1
      
      
      1Institute of Marine Sciences, University of California Santa Cruz, 115 McAllister Way, Santa Cruz, CA 95060, USA *(phil.capitolo@gmail.com)	
      
      2Humboldt State University, Department of Wildlife, Arcata, CA 95221, USA
	
      
      3US Geological Survey, Western Ecological Research Center, Santa Cruz Field Station, 2885 Mission St., Santa Cruz, CA 95060, USA	
      
      4US Fish & Wildlife Service, San Francisco Bay National Wildlife Refuge Complex, 1 Marshlands Rd., Fremont, CA 94555, USA	
      
      5Current Address: California Institute of Environmental Studies, P.O. Box 1185, Davis, CA 95617, USA	
      
      6Current Address: Tetra Tech, Inc., 1750 SW Harbor Way, Ste. 400, Portland, OR 97201, USA
      
     
    
   
   
    
    
    
      Citation
      CAPITOLO, P.J., CARTER, H.R., YEE, J.L, McCHESNEY, G.J., PARKER, M.W., YOUNG, R.J., GOLIGHTLY, R.T. & TYLER, W.B. (2019). Changes in breeding population sizes of Double-crested Cormorants Phalacrocorax auritus in the Humboldt Bay area, California, 1924–2017
        Marine Ornithology, 47(1), 
        115-126.
        
        http://doi.org/10.5038/2074-1235.47.1.1300
      
     
    
    Submitted 17 September 2018, accepted 07 February 2019
    
    Date Published: 2019/04/15
    Date Online: 2019/04/02
    
    
    
    
      Key words: aerial surveys, California, Double-crested Cormorant, Humboldt Bay, Phalacrocorax auritus, population trends