As WC has noted before, there are at least three places called “Camas Prairie” in Idaho. None of them is actually a “prairie” — Idahoans name even the smallest flat spot a “prairie” — but all of them have Camas Lillies that bloom in some, but not all years. This Camas Prairie is the one north of the Snake River Plain, a rift valley sandwiched between the Solider Mountains on the north and the Mount Bennett Hills on the south. Centennial Marsh lies in the middle of this Camas Prairie, and it is a very good birding destination.
Winter snowpacks on the northerly slopes of the Mount Bennett Hills melt more slowly, bringing water down to Centennial Marsh longer. It doesn’t revert to a semi-arid valley floor until as late as July. The water is around long enough for a very nice selection of birds to breed and raise their young. Here’s a sampling.
You can probably tell WC had fun.