Northern House Wren
Troglodytes aedon
Adult northern house wrens are about 11 to 13 cm (4.3 to 5.1 in) long, with a 15 cm (5.9 in) wingspan and weigh about 10 to 12 g (0.35 to 0.42 oz). Among standard measurements, the wing chord is 4.7 to 5.3 cm (1.9 to 2.1 in), the tail is 3.9 to 4.4 cm (1.5 to 1.7 in), the culmen is 1.1 to 1.3 cm (0.43 to 0.51 in) and the tarsus is 1.6 to 1.8 cm (0.63 to 0.71 in). The subspecies vary greatly, with upper parts ranging from dull greyish-brown to rich rufescent-brown, and the underparts ranging from brown, over buff and pale grey, to pure white.
ID text from Wikipedia, CC BY-SA 4.0
Winter Wren
Troglodytes hiemalis
Small tail is often cocked above its back, and short neck gives the appearance of a small brown ball. Rufous brown above, grayer below, barred with darker brown and gray, even on wings and tail. The bill is dark brown, and the legs are pale brown. Young birds are less distinctly barred. Most are identifiable by the pale "eyebrows" over their eyes. Measurements: Length: 8–12 cm (3.1–4.7 in) Weight: 8–12 g (0.28–0.42 oz) Wingspan: 12–16 cm (4.7–6.3 in)
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: Northern House Wren and Winter Wren.