LeConte's thrasher weighs from 55 to 75 g (1.9 to 2.6 oz) and are 24.5–29 cm (9.6–11.4 in), and there is no sexual dimorphism within the species.
Their wings are typical of birds that are sedentary, as they are short and rounded.
There are noted differences among the subspecies.
The crown, back, shoulders, and rump of T.c.
lecontei possess a sandy pale-gray color.
The primaries and secondaries are grayish brown.
The rectrices are of a darker gray brown that contrasts with the plumage.
Lores and ear-coverts are a mottled gray brown.
The throat is an off-whitish color of a darker stripe.
The chest and belly is puffy gray, and the vent and uppertail coverts are of a warmer tint in contrast to the palish chest and belly.
The underwing is both gray and buff, with a brown-chestnut iris, a black-sickle shaped bill, and legs that are nearly black.
T.l.
arenicola has a darker chest and underparts and a shorter tail.
In its juvenile stages, the thrasher is darker brown, and its feathers looser and fluffy in appearance, especially on the vent.
LeConte's thrasher weighs from 55 to 75 g (1.9 to 2.6 oz) and are 24.5–29 cm (9.6–11.4 in), and there is no sexual dimorphism within the species. Their wings are typical of birds that are sedentary, as they are short and rounded. There are noted differences among the subspecies. The crown, back, shoulders, and rump of T.c. lecontei possess a sandy pale-gray color. The primaries and secondaries are grayish brown. The rectrices are of a darker gray brown that contrasts with the plumage. Lores and ear-coverts are a mottled gray brown. The throat is an off-whitish color of a darker stripe. The chest and belly is puffy gray, and the vent and uppertail coverts are of a warmer tint in contrast to the palish chest and belly. The underwing is both gray and buff, with a brown-chestnut iris, a black-sickle shaped bill, and legs that are nearly black. T.l. arenicola has a darker chest and underparts and a shorter tail. In its juvenile stages, the thrasher is darker brown, and its feathers looser and fluffy in appearance, especially on the vent.
LeConte's thrasher