Lincoln's Sparrow
Melospiza lincolnii
Adults have dark-streaked olive-brown upperparts and a light brown breast with fine streaks, a white belly, and a white throat. They have a brown cap with a grey stripe in the middle, olive-brown wings, and a narrow tail. Their face is grey with brown cheeks, a buffy mustache, and a brown line through the eye with a narrow eye ring. Males and females are alike in plumage. They are somewhat similar in appearance to the song sparrow although smaller and trimmer with finer breast streaks. Voice: Lincoln's sparrow is a very secretive species; they are often not seen or heard even where they are common. Only the males are known to sing and their song is unique among the Melospiza genus. They produce a sweet, wrenlike, gurgling song with varied frequencies.
ID text from Wikipedia, CC BY-SA 4.0
Song Sparrow
Melospiza melodia
Adult song sparrows have brown upperparts with dark streaks on the back and are white underneath with dark streaking and a dark brown spot in the middle of the breast. They have a brown cap and a long brown rounded tail. Their face is gray with a brown streak through each eye. They are highly variable in size across numerous subspecies (for subspecies details, see below). The body length ranges from 11 to 18 cm (4.3 to 7.1 in) and wingspan can range from 18 to 25.4 cm (7.1 to 10.0 in). Body mass ranges from 11.9 to 53 g (0.42 to 1.87 oz). The average of all races is 32 g (1. Voice: The sparrow species derives its name from its colorful repertoire of songs. Enthusiasts report that one of the songs heard often in suburban locations closely resembles the opening four notes of Ludwig van Beethoven's Symphony No. 5. The male uses a fairly complex song to declare ownership of its territory and attract females.
ID text from Wikipedia, CC BY-SA 4.0
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