Blimey. I hope you
have considered the issues regarding playback and making birds perform for the hell of it. And that this
isn't going to take place in the UK. Maybe I am being trolled - fair enough - I will embrace the troll...
In the event this is straight, no one mic in one position will do all you want. Birds are small and far away, humans are big and loud and closer to your mics. Your perspective will be dreadful IMO. You would probably want to record the general soundfield with something like a cardioid xy pair of MKH30s or an MS pair - MKH30/40 or a 30/50. Use a Rycote modular system for wind protection. IF you are producing for a broadcast environment favour the MS for field recordings for a bunch of boring technical reasons, and request the capability to monitor MS recordings properly from your recorder (Nagra BB+ or SD722 would be all right here)
For the dialogue you'll have to mike up the individuals - a lavalier mic into a minidisc or cheapie CF recorder for each group of people. You'll then synch all that up in post-production. There's no way what people will say will be intelligible and in balance with the overall perspective of bird sounds. You'll probably end up dubbing the bird sounds anyway. Or have a separate sound man with a parabolic dish if you know where the birds will call from (ie he can see them - you can't get a dish onto a bird that has started calling in time to be useful). You can then patch this into the mix in post. If the people are experienced actors you can probably loop the dialogue after the shoot, if it's Joe Public then you have to go with the lavalier mics and try and get some wind protection on the mics. You'll struggle in winds above 5-6mph.
If you're only doing a few sessions of this you are far better off hiring the gear from a facilities company. If you are doing a lot of it (WHY?!!!!) then after a few weeks of uses there is a case to be made for buying the gear.
You will make life a
lot easier for yourself by hiring a sound man experienced with recording nature sounds, or at least with tv/film location recording. Or if that's not possible involving your local college recording guys. There are an awful lot of gotchas to what you're trying to do which will wear the patience of you and your actors thin. Actors both human and avian... Getting expertise would be very well worth paying for to get results in a fraction of the time it would take to learn from scratch. So you can then leave our feathered friends
alone, for Pete's sake.... If there's one resource you need, it is that skilled person - he can then spec up and rent/supply the gear that you need, and drive it to get you the best results. Try someone like wildeye from the links on here
http://www.wildlife-sound.org/links/index.html
As far as the mics being suitable for digital video cameras, you are dead in the water trying to go that way. Your audio requirements push the envelope so much you'll need to mix this and sync the audio track in post so the audio will never see the camera until you're editing. The camera audio will be dead useful to synchronise sound and vision, but its quality can be rotten as it won't end up in the final mixdown.