Hey Thomas,
Very good questions about the birds in the lake, etc. I thought you might have been here at sometime in your travels. Basically this is a very salty lake. Few to no fish can survive in there that I am aware of. But it is a breeding lake for seagulls and occasional other specifies of birds, including some varieties of ducks and I think I saw a few geese a few years ago. But as you point out there are very far away and this lake is huge.
The other question about the trees and shrubs of the area is a good question, too. Basically you have some reasonably large trees in parts of the background and rather thick and tall shrub growth in the background near the Hiway where the small cabin and 2 story house remains.
One thriving industry in the lake is brine shrimp. They are harvested during the year and sold to users of aquariums for exhibiting exotic fish and feeding them with this brine shrimp.
If you want more specific information about the types of trees and surrounds of the Mono Lake you could Google Mono Lake, High Sierras, California, USA.
I hope this does help you envision some of the area.
All the best, Gary N W SFO