That would unnerve me too. I think birds (cedar waxwings for sure) love hawthornes.
Printable View
haws have a really pasty flesh compared to a crabapple. they taste very bland (you have to taste them!)
crab apples are SUPER SOUR.. so just taste one. you can do it.
if it tastes bad, just spit it out.
I remembered this post when I saw this photo of a cedar waxwing chowing down on hawthorn berries.