
Alex V. answered 10/04/21
PhD student with lab experience and 5+ years of teaching experience
There are so many! Look at what kinds of plants geese seem to prefer vs what swans and ducks prefer. Look at whether the presence of another species (eg geese/swans/hens) affects whether ducks will go there, and same for the other species. Look at whether rabbits are responsive to bird calls (like for danger), i.e. if a bird gives a danger call do the rabbits notice, and run, or do they ignore the birds altogether?
That's just a few off the top of my head. Hope it helps!