Eh... JREFers love to one up on the 'Oh... Oh Yeah?! They HAVE been spotted in Hawaii!! LINK LINK LINK' and pig thievery rather than answer your intriguing questions.
I don't really follow the Bigfoot threads so pardon me if some of these are redundant.
A Squatch (don't blame me, I didn't come up with that name) would appear to me to need upwards of 4000 calories a day to support their enormous bulk. What are they hypothesized to eat?
The PNW wouldn't be the worst place in the world to support a large omnivore, assuming that's what they are supposed to be. The milder climate and high rainfall grows greens almost year round. There's plenty of wild mushrooms and berries. Not to mention salmon and trout in the rivers and the odd dead deer. I still don't believe that it is
likely to support animals on the scale of Bigfoot but it is not totally out of the question. At least, not without them being seen more often.
Throwing pig stuff... That's just 'Skeptics are closed-minded buttholes!!!' ammo for the BFF folks.
Bigfoot outside of the PNW is marginally tougher for me to believe. Like a Purple Unicorn may be tougher to believe than a white one.
Are they hypothesized to live in pods/herds/clans, as monogamous couples or as independents?
I think the one theory I heard that made a bit of sense was that they lived in small family groups with the odd rouge male wandering around looking for Bigfoot chicks... Or something. Granted, this is force fed to explain away the lack of sightings and good photographic/video evidence.
How is it that they are both so rare as to be unconfirmed as an existing species but so common that they are reported in all the states excluding Hawaii?
You and me both. With so many people with camera phones and hunters using trail cams and motorists hitting every other species out there...
On the BFF they say that they are smart, at least Chimp smart and maybe smarter and they actively avoid detection. Even so, one would be bound to trip up. A body or bone would turn up.
Personally I think it's kind of natural to believe in huge larger-than-life hairy guys in the woods, maybe somewhat primeval. The large hairy man stories seem to be rather common in cultures all over the world which to the Bigfooters is proof of worldwide distribution but to me is proof of a world wide distribution of humans that still carry all the panicky cranial hardware that got us through the African Savanna before we had spears and AK-47s and junk.
Has anyone tried to locate them through dung research or aircraft with downward infrared equipment?
I believe Sightings did an areal thermal imagining thing in the 90's on the Olympic Peninsula. They saw Elk.
I once encountered something in the woods that let off one hell of a loud roar of a type that I had never heard before. I've always just assumed it was an existing and known animal making noises in an unfamiliar way. But someone else might have interpreted it as a Bigfoot encounter. Wouldn't it be logical to just explain away most sightings like this?
Most people are unaware of all the fauna that roams the wood around where they live. Even if they are aware they may not be familiar with every sound or behavior that the animals exhibit. I honestly believe it's about half BS and another half misidentification.