Hybrid / problematic gulls
G


1w Glaucous x Vega?  ad.winter GlaucousxVega?
             ad.winter Glaucous? x Slaty-backed?
Western Gull x Glaucous-winged Gull
Glaucous x Glaucous-winged
Glaucous Gull x Vega Gull?
Glaucous x Glaucous-winged
Glaucous x Vega?
Glaucous-winged x Slaty-backed
Glaucous Gull x Vega Gull?
ad.Glaucous x Glaucous-winged?
ad.Glaucous x Vega or Herring?
1st winter.Glaucous x Vega?
2nd winter.Glaucous x Vega?
1st winter Glaucous x Glaucous-winged?
ad. winter,Glaucous x Herring(Vega)?
taimyrensis x Glaucous? or 
             Slaty-backedx Glaucous? 
1st-winter Slaty-backed or Thayer's
2nd winter Glaucous x ?
ad.Glaucous x vegae or smithsonianus


 

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