How do you catch month old fawns to medicate them?

Has anyone considered using the handheld net gun with 2" mesh squares by 8x8 coverage to go out into pen and capture a specific fawn rather then disturb entire herd or try to run that one fawn through alley way? This is what I have been considering doing rather then taking a big chance on harming the fawn by making a bad shot with air gun, or by having a bad reaction to xylazine which does work at a 1/2cc to 50lb ratio. Interested to hear answers also.

I’m curious as well!

Stretch a gill fishing net from fence line out about 25 ft or more. Have it about 3 ft from ground up. Push deer around big deer will jump it fawns wills tangle up.