Whoever said only 2 of these spawn on a maps full of crap, my game crashed and when i reloaded it of course i got unmounted apon loaded and fell to my death and where i thought i was in my base area ibdidnt pay attention to where i died... apon spending the next 3 hrs looking for my rhyna and my gear i got gang bamged by 6 of these at once they spawn in groups and try to hunt in groups, and will out pace and destroy anything you got if you try to run, best bet is to straf there shots while chageing and pray your tame can dish some damage, that being said they are the fastest flyer and in im gunna say the top 3 as far as swimmers and transition almost flawlessly my furst rhyna was lvl 5 lol lvled it to 55 and apart from a high lvl giga or carcha nothing could trouch it except by an assendant machete that woulda probly 3 shot it and of course getting arked.... so far any carcha, quetz or rhyna iv tamed thus playthru arks got me on everything except gigas but the fact iv only seen one giga above lvl 7 id say im getting arked there as well, but my tamed at lvl 5 with one craving fed itd still wreck lvl 100 rhynas in about 5 hits