Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
pīca, ae, f. [prob. from pingo, the variegated, spotted bird], a pie, magpie, Plin. 10, 29, 41, § 78; 10, 42, 59, § 118; Ov. M. 5, 294 sq.; Pers. prol. fin.