I’m wondering what could explain some-number-of seagulls ending up pretty far inland (in the summer, at the time of a drought). How far inland would be Decidedly Unusual but not impossible? Is there a time-of-year/set-of-weather-conditions when this would be most likely?
Also, what could kill them off (preferably without targeting other birds)? Is there anything that could account for both them straying and dying off? (Um . . . wandering bird sickness?) It doesn’t have to be many birds, just enough to be noticeable.
(This would probably be more credible if I pretended it actually happened, but it’s strictly for Research Purposes)
Any information would be greatly appreciated!