crocitar

A rare, specialized verb meaning to caw — specifically the cry of a crow. It belongs to the long, formal list of animal-sound verbs Spanish has for nearly every species, but almost no everyday speaker uses it; graznar covers crows, ducks, and geese alike in ordinary speech. Crascitar and croscitar are recognized synonyms for the same sound.

• El cuervo crocitaba desde la rama más alta. — The crow was cawing from the highest branch.
• Dicen que el cuervo crocita, no canta. — They say a crow caws, it doesn't sing.
• En el bosque se oía crocitar a los cuervos al amanecer. — In the forest you could hear the crows cawing at dawn.

This is dictionary/naturalist vocabulary, not conversational Spanish — using graznar instead won't sound wrong to any native speaker, while crocitar risks sounding stilted outside a biology text.