If you are a high enough level you can use a crossbow and tranq arrows without a trap with 1 or 2 hits.

This dino should have a tek saddle that refrigerants food so it lasts longer like the tek trough

These tame exactly like maewings. They have low torpor and are knock outs with mutton or kibble. On Astraeos they spawn at roughly 28,8; 38,30; 25,50; 66,56. I have found them in those areas. They're very fast in the water and have no speed bar, they DO have a nursing effectiveness bar.

To prevent running away, try and use rare flowers, make sure nothing else is going to attack you, from there lead into trap or just shoot and knock out doesn’t take much for these guys

Maegauana babies eat meat and berries, but berries are better to use when raising

--AK

Knock out and tame with meat. Tried with crops, but preferred meat.

Don't listen to the trolls same as maewing trap knock out feed

Ko tames they eat mutton n basic kibble

They would run once hit so I recommend that you build a trap using either two or three signs.