I have a Leica binocular, which was given to me by my late Father, and cost well over $1000.00. They are extremely durable, very, very bright in low light, pretty doggone heavy for their size, and expensive. (In 20+ years of regular field use, they have never fogged or failed me in any way.) Still, they are obscenely expensive.
If that is not in your budget, I suggest considering the Bushnell Elite ($500-700) or Discover ($350-450) range. They have gotten excellent reviews, handle very well, have very smooth adjustment, and the RainGuard technology is supposed to be quite good.
Leupold also makes a Wind River line that is pretty good for the money, $280 and up from Cabelas.
The less expensive would not satisfy a hard core bird watcher, but may be all you need to get started.
Best of luck.