hatchling

noun 0.572

eaglet

noun 0.561

nonavian

noun 0.535

fledgling

noun 0.535

subadult

noun 0.530

preemie

noun 0.530

newborn

noun 0.525

nestling

noun 0.523

preterm

noun 0.522

passerine

noun 0.519

unborn

noun 0.518

bird of prey

noun 0.517

immature

noun 0.509

infant

noun 0.505

youngling

noun 0.503

nonadult

noun 0.501