Dark, if you stay in Alaska, find someplace where the salmon spawn and die, and pick up the dying fish to dry. You can chop or crumble the dried fish for protein for the chickens -- it may alter the flavor of the eggs a bit, but better than no fresh eggs. The dried fish is usually used for dog food, BTW. I don't know if you need a permit to do this -- I don't think you are in a subsistence area, since you are in Anchorage, so check on it.
Also road kill, and the gut piles from hunter-killed animals -- check with your friends. Freeze, and chop each day what you need. Keep the stomach contents in for the chickens -- they'll eat it all. For a handful of chickens, you don't need all that much each day, about a pound per three dual-purpose hens. Maybe a bit more in cold weather. (That's dry weight, though, I think -- if the feed is wet, better add a little.)
We knew some people in Tok who kept two does and a buck (Toggenburgs, if I remember correctly). They probably were buying a little grain for the two does, but harvested their hay from along the roads, by hand, and hauled it home, loose, in their truck. The hay included all kinds of weeds, which are very good for goats, as well as branches from aspen and willow trees. Goats don't need as much protein as poultry does, because they manufacture protein in their guts (all those micro-organisms that live there and digest their food), but if you can grow stuff like cabbages, carrots, beets, and rutabagas to supplement their winter hay, it will help. Pea vines make good hay, too, and peas grow well up there. Dried peas used to be the protein part of the feed for animals in northern climates, and probably will be again. You should also be able to grow barley there (I know it's grown in the Interior), and possibly oats, as well.
Rabbits do well on hand-harvested hay, especially if it includes some legumes (clovers, peas, alfalfa).
The main thing is to make sure they have enough water -- get some of the black rubber buckets and feed pans from the feed store (or order them -- the soft rubber kind, not the hard ones). These you can bash against a tree to break the ice out of them, and it doesn't hurt the bucket a bit.
Make sure the chickens have a calcium supply (or they'll end up eating eggs -- ask me how I know), and the goats and rabbits need mineral salt. Don't use sheep mineral for goats. It doesn't have enough copper in it -- goats have high copper requirements, enough to kill sheep.
Kathleen