Speckled Spinetail

The spectacled spinetail is 13 to 15 cm (5.1 to 5.9 in) long and weighs 13 to 17 g (0.46 to 0.60 oz). Adults have an ochraceous brown supercilium, ear coverts, and malars; the last two have dark brownish speckles. Their crown is dark chestnut that becomes dark brown on the hindcrown and upper back. Their lower back is a richer brown that continues with a rufescent tinge on the rump and uppertail coverts. Their tail is rufous; despite the species' "spinetail" name, the feathers are rounded. Their wings are dark chestnut with an ochraceous bend and dark fuscous tips on the flight feathers. Voice: One song of the speckled spinetail is " a quavering, descending trill with introductory note, tch-t-t-t-t-t-t-t-t-t-t. Another is "a short series of high piercing notes, 'tsee-tsee-tsee-tsee-tsee-tsee' ". Its alarm call is a "short, low rattle".