Mouse-colored Penduline-Tit

Active little inhabitant of coniferous and mixed forest, birch woodland, willow and alder scrub. Very similar to Marsh Tit, and often best separated by its differently whistled song (more helpful in western range than in eastern). Gives various high-pitched and scolding calls; generally narrower vocal range than Marsh Tit. Often in scrubbier habitats than Marsh Tit; sometimes visits feeders. On Willow Tit, note pale wing panel (vs. rather plain wings of Marsh), slightly larger and messier black bib, and brighter buffy flanks.

Small, dark olive-green honeyguide. The face and underparts are dark gray, with a pale spot above the bill and a dark line below it. Sometimes shows strong streaking on the back and lower flanks. In flight, shows white patches on the sides of the tail. Found in forest and tree plantations. The main call is a slowly repeated “chreeya.” Similar to Lesser and Thick-billed Honeyguides, but smaller, and further distinguished from Thick-billed by the facial markings. Also similar to Pallid Honeyguide, but has a larger bill, and a darker and more patterned head. Similar to Wahlberg’s and Green-backed Honeyguides, but has a thicker bill.

Drab olive overall with white eyering, bold wingbars, and thick bill. Found in forested areas with a mix of oak and conifers, usually foraging in the middle levels. Often in mixed flocks with other small songbirds. Resident along the Pacific coast from British Columbia to northern Baja and in interior mountains from Arizona and Texas to Guatemala. Remarkably similar to Ruby-crowned Kinglet, but thicker-billed and more sluggish; also note bluish legs. Also compare with Dwarf Vireo in Mexico. Listen for distinctive repetitive song of clear or buzzy notes.