Stay Stealth

If you are doing any animal observation the last thing you want to do is alert the animals to your presence. One snap of the twig and that animal is off and running. Animals also have incredible eyesight. If you are sporting anything that stands out they won't be standing around for long. For this reason most people wear camouflage outfits.
Though if you are serious about blending in you should make sure everything you bring doesn't stand out. Which would make Leupold Cascade 10 x 42 binoculars a smart buy. They are top quality binoculars encased in a rugged skin that's camouflaged. So you can see them, without them seeing you.