it might help to try at dawn or dusk....i would get a net, and motorbike gloves (or other thick, strong gloves)
but i dont know
, thankfully ive never had a bad biter... the budgies try pretty hard sometimes though 
but yeah, i would get a big fishing/aquarium net, but with small netting (my budgies seem to just jump into the net when you cover them with it, never had to get Cinn that way) or a pool skimmer net of some sort to catch, then hold one wing and body at a time with glove on.... i dont see a conceivable way of doing this without someone helping though...
just my thoughts..
i have been told by my vet that it is really bad to clip one wing at a time (and even worse to only ever clip one wing)... as the muscles in the clipped wing overcompensate when they flutter(or fly)
she goes on to say that you should clip all the flight feathers (on both sides) except the first and last 3 leaving a kind of
/_/_/-----l_l_l *body* l_l_l-----\_\_\
pattern in both wings... thats all the knowledge i have on the subject...
i dont actually clip any of my birds... so i have no personal experience on the matter
but i dont know
but yeah, i would get a big fishing/aquarium net, but with small netting (my budgies seem to just jump into the net when you cover them with it, never had to get Cinn that way) or a pool skimmer net of some sort to catch, then hold one wing and body at a time with glove on.... i dont see a conceivable way of doing this without someone helping though...
just my thoughts..
i have been told by my vet that it is really bad to clip one wing at a time (and even worse to only ever clip one wing)... as the muscles in the clipped wing overcompensate when they flutter(or fly)
she goes on to say that you should clip all the flight feathers (on both sides) except the first and last 3 leaving a kind of
/_/_/-----l_l_l *body* l_l_l-----\_\_\
pattern in both wings... thats all the knowledge i have on the subject...
i dont actually clip any of my birds... so i have no personal experience on the matter