Brown Songlark
Cincloramphus cruralis
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
Rufous Songlark
Cincloramphus mathewsi
The rufous songlark is a medium brown passerine songbird with a pattern of streaks on its feathers. Encyclopædia Britannica describes this bird as "drab and vaguely larklike". It has a dark line through its eye, a pale eyebrow and pale underparts, and a rufous upper tail and rump. A little larger than a house sparrow, the male grows to about 19 cm (7.5 in) in length and is larger than the female which reaches only about 16 cm (6.3 in). This species is similar to the brown songlark but males of that species are much larger than those of the rufous songlark.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Brown Songlark and Rufous Songlark.