There’s a glitch that causes manas to be stuck in the air not landing and slowly fly off to the sky border even if whistled, this can happen to manas wild or tamed. You can stop this by equipping a saddle on them while your standing on a griffin or quetzal and riding it.
Pump everything into Stam. Gives you a few launches upwards but only ever 1 warp speed move until you touch the ground again. Does NOT take fall damage. Updog so others can see