Passeriform, Size range and structural diversity

Passerines are small to medium-sized land birds, ranging from about 7.5 to about 117 centimetres (three to 46 inches) in overall length. Among the tiniest species are the New World flycatchers (Tyrannidae), New Zealand wrens (Xenicidae), titmice (Paridae), flower-peckers (Dicaeidae), tanagers (Thraupidae), and waxbills (Estrildidae). The heaviest are the lyrebirds (Menuridae) of Australia