The north east coast USA places I have been birding seem to have a mix of high, medium and low quality binoculars.
On the high end the big four (Leica, Swarovski, Zeiss and Nikon) seem to be the most common. Heck its great glass.
For the middle tier I see lots of Nikon Monarchs, Pentax, Minox, Minolta, Audubon poros, Swift, Bushnell and more. Also a lot of large antique glass with dusty prisms and fungs on the glass. The owners swear they work as good or better than the new stuff. After a good comparison I agree with them (to avoid a geezer wrestling match on the birding platform) and slip my eye doctors card into their binocular case while they are trying to figure out if they are looking at a Black Swan or a Turkey Vulture.
On the low end its a real mix of almost acceptable to "mimic bins" that are made to look expensive but are dirt cheap. These uaualy have lots more knobs and levers than a "normal" bincoular. Zooms and brightly colored objectives rank high in this group. Some have cameras, radios, Internet and cup holders built in! But I am very happy to see anyone not looking at a TV.
Scopes – Swarovski AT rules the roost at all places I bird. I could not sell my Nikon ED 82 fast enough after spending an afternoon comparing it to the AT 80 on a wetland birding platform. The AT is more expensive – But (I felt) the view quality is worth it. I spent an hour last Saturday looking at a Great Horned Owl with a chick sitting on a huge Red Tail nest in the local cemetery at about noon. I now know where the term sleeping with one eye open comes from. The Mother Great Horned was drifting in and out of sleep every min. At about 800 feet (244 meters) the view was great at 50 power (compared to the Nikon). No regrets on the AT purchase!
Most popular tripod - Manfrotto
-Backpacking and hiking trails – Nikon & Pentax reverse poros, (in my camp Leica 10x25 and Nikon 10X2 5LXL)
-Empire State building, Tasko, and no name brands with orange Objective and blue oculars.
-Statue of Liberty no name brands with blue objectives and orange oculars.
-NY Opera – No name 3x opera glasses (why bother), Nikon & Pentax compact.
-Boating – Poros the bigger physical size and the bigger the objective the better. Barska 10-30X50 Zoom (not water proof and unuseable in wave conditions).
Most popular field guide - Sibley
Most popular pants - Zip off legs with as many pockets as possible
Most popular shirt - Safari shirt with as many pockets as possible and a cup holder
Most popular vest - As many pockets as possible and 2 cup holders
Most popular hats - Free vendor logo caps (under 40), wide brimmed sun hats (for over 40). Apparently there is a fortune to be made for the inventor of a birding hat with multiple pockets. Maybe an opportunity for shoes with pockets too. Please be advised I have a patent pending for both. Be on the look out for a new product line of important and exciting - "things" - we will be markting for you to put in those pockets! We are accepting orders while we dream up the "things". Collateralized security investment opportunities and retirment dirivatives are availble now. Get in on the ground floor while you can. There is no risk - this venture is backed by credit default swaps and you can bank on that!
Most popular coffee - Dunkin Donuts in a reuseable mug, followed by high powered dark (burnt) specialty blends in disposable cups followed by green tea in recycled resuseable mugs.
Most popular sandwich on the birding platform - Turkey, Swiss, mayo, tomato and onion.
Shortest stay on the birding platform - Usualy less than 5 min. Hugely obese people on vacation who would rather watch birds on TV.
Least popular auto fuel BP and Exxon (for the same reasons).