coverts
cov-erts
noun
Areas of dense undergrowth or woodland providing shelter for game animals.
"The foxes disappeared into the coverts."
noun
Small feathers covering the bases of a bird's main flight or tail feathers.
"The bird's striking blue wing coverts were visible."
Thesaurus
Synonyms: under wraps, subterranean, disguised, masked, underground, subterraneous, undisclosed, clandestine, cloak-and-dagger, hush-hush, undercover, under-the-table