These guys are some of the most annoying creatures. I’ll be hunting with my level 140 albino Rex and one will have the audacity to fly right into my Rex’s mouth and get angry when he gets bit. Then eight of them start buzzing around you like flies and you have to deal with them or it gets annoying. I hate these guys more than Gigas.
When in areas that have many dimorphadon remember to be careful and not to hit one by accident when fighting other creatures as you can easily be overwhelmed.your mount will not be able to save you as they deal damage directly to the rider.
I went to raid a base with 4 buddies, a rex, 3 carnos, and a bronto with a platform saddle and cannons. All we heard was a whistle and i swear about 50 of these little devil's swarmed the whole group, killing everyone in the group and one carno, the turrets shredded everything else, but the rex must have ran off and we never got a death message so its still out there in the jungle.