LeConte's Sparrow
Ammospiza leconteii
LeConte's sparrow is a small sparrow with a relatively large head, short grey bill and short pointed tail. It has a buffy yellow-orange face with grey cheeks, and a dark brown crown with a white central stripe. The nape of the neck is lilac grey with chestnut streaks, and the back is streaked with brown and beige. Its belly is off white, while the breast and sides are a buffy orange-yellow with dark brown streaks. The feet and legs are a brownish-pink colour. Voice: The male's song resembles a grasshopper buzz with a short squeaky introductory note and ending with a short chirp. It is often described as tika-zzzzzzzzzzzz-tik while the call is a short tsip. It is most commonly confused with the song of the Nelson's sparrow.
ID text from Wikipedia, CC BY-SA 4.0

Saltmarsh Sparrow
Ammospiza caudacuta
The saltmarsh sparrow measures 11–14 cm (4.3–5.5 in) in length, has a wingspan of 17.8–21 cm (7.0–8.3 in), and weighs 14–23.1 g (0.49–0.81 oz). Adults have brownish upperparts with a gray nape, white throat and belly, and pale orange breast and sides with brown streaking. The face is orange with gray cheeks, a gray median crown stripe, brown lateral crown stripes, and a brown eyeline. The tail feathers are short and sharply pointed. The subspecies A. c. diversa has more contrasting striping on its back and a darker crown than the nominate A. c. caudacuta. Only males sing.
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: LeConte's Sparrow and Saltmarsh Sparrow.