Here is what I learned once I began studying whooping cranes: only a small part of studying them has anything to do with the birds. Instead we counted berries. Counted crabs. Measured water salinity. Stood in the mud. Measured the speed of the wind.

It turns out, if you want to save a species, you don’t spend your time staring at the bird you want to save. You look at the things it relies on to live instead. You ask if there is enough to eat and drink. You ask if there is a safe place to sleep. Is there enough here to survive?

Wading through the muck of the Aransas reserve, I understood that every chance for food matters. Every pool of drinkable water matters. Every wolfberry dangling from a twig, in Texas, in January, matters. The difference between sustaining life and not having enough was that small.

If there were a kind of rehab for people ashamed to have needs, maybe this was it. You will go to the Gulf. You will count every wolfberry. You will measure the depth of each puddle.