Brown Songlark vs Tawny Grassbird

Brown Songlark

Cincloramphus cruralis

Small49 gGrassland

Male brown songlarks are 23–25 cm long versus 18–19 cm for females and may weigh 2.3 times as much. The average weight of males was listed as 74.8 g (2.64 oz) and that of females is 32.4 g (1.14 oz). They are probably the most sexually dimorphic passerine in the world in size difference, as well as likely the largest species in the family Locustellidae. In general, the birds have a dusky pale-streaked with darker brown plumage and pale eyebrows. The underparts are brownish-white in the female, darker brown in the male. Breeding males may display a cinnamon colour.

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) dhfischer, some rights reserved (CC BY), uploaded by dhfischer · cc-by

Tawny Grassbird

Cincloramphus timoriensis

Small22 gWetland

The tawny grassbird is a medium sized grassbird with a wingspan of 56-69mm, a stout bill 14-17mmand weighs around 13-25g. The bird has an unstreaked rufous (rich brown) cap, obvious rufous fringes to flight feathers on the folded wing and wholly unstreaked underparts. It also has a long drooping tail and rufous rump. The male has a varied song given in both display flights and from exposed perches. The males sing mostly in spring and summer. The tawny grassbird is distinguished from the related little grassbird by its larger size, stouter bill, more rufous plumage and longer tail. Voice: The Slater Field Guide notes the voice is a rich ch-ch-ch-zzzzzzt lik lik: loud see-lick: high-pitched descending trill. In flight, it has "metallic chuck chuck chuck." The Australian Bird Guide describes displaying males with a "delightful varied song, given both in display flights and from exposed perches. Its alarm call is a repeated "harsh tjik or jk-jk".

ID text from Wikipedia, CC BY-SA 4.0

Photo: (c) Rolf Lawrenz, some rights reserved (CC BY) · CC-BY

Photos and recordings are credited to their authors under the licence shown. Full profiles: Brown Songlark and Tawny Grassbird.