SPORT: British decathlete,Olympic champion 1980 & 84?

Questions

The ---------- snake found in the state of Arizona is not poisonous, but when frightened, it may hiss loudly and vibrate its tail like a rattlesnake.?

Very unusual for carnivores, hyena clans are dominated by ----------?

The sea lion can swim 6,000 miles, stopping only to ----------?

The great horned owl can turn its head ----------?

Wandering ---------- spread their wings, clack bills, and shake heads in a ritual dance. Bonds between courting birds may last the whole of a 50-year lifetime.?