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1. svartbak Larus marinus

   ML414610 Rapporter
   
   vurdering 2

   4 vurderinger

   Timothy Barksdale

   feb 1999

   Boone, Missouri, United States
   Kommentarer immature waldk on ice. Recordist comment: ID info. [SUBJECT Greater Black-backed…

   Age and sex Immature Unknown sex - 1
2. svartbak Larus marinus

   ML414543 Rapporter
   
   vurdering 3

   5 vurderinger

   Timothy Barksdale

   jan 1999

   St. Charles, Missouri, United States
   Kommentarer Other Behaviors: Swim.

   Oppførsel Foraging or eating
3. svartbak Larus marinus

   ML414530 Rapporter
   
   vurdering 2

   5 vurderinger

   Timothy Barksdale

   jan 1999

   St. Charles, Missouri, United States
   Age and sex Unknown age, Unknown sex - 1

   Oppførsel I flukt