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NEW WORLD SPARROWS AND ALLIES (PASSERELLIDAE; 21+
SPECIES) Large New World family formerly merged with Emberizid buntings of the Old
World. Ages differ, attain adult appearance within a few weeks; sexes alike in Costa Rican
species. Numerous species formerly placed in this family are now considered to be tanagers.
Species of shady understory often best detected by voice.
LARGE-FOOTED FINCH Pezopetes capitalis 19–20.5cm. Large, drab, rather
chunky ‘finch’ of humid highland forest, bamboo thickets, second growth,
overgrown pastures, gardens. Hops and bounds quickly on ground, and ‘jump-
kicks’ with both feet to dig in leaf litter; also ranges into fruiting bushes and low
trees. Sings from low perch or ground, at times in duet. Note large size, olive
body, black face and crown stripes—and it does have big feet. Cf. smaller, less
bulky brushfinches. SOUNDS: Varied, often strikingly noisy. Very high, thin sit
and t’sit; slightly grating, downslurred squeaky tsiin; high, thin, buzzy tszir can
be run into excited, squeaky gobbling chatters. Full song remarkable, an
unhurried but varied medley of rich chirps, whistles, gurgles, short trills, with phrases often repeated a few
times; varies from 1–3 secs between phrases to a more continuous stream; can include mimicry. Also a
simple, slightly tinny chirping chíliu or chi-i-lu, repeated or alternated every few secs. STATUS: Fairly
common to common in Central and Talamanca Mts., 2100–3300m. (Costa Rica to w. Panama.)
YELLOW-THIGHED BRUSHFINCH (FINCH) Atlapetes (Pselliophorus) tibia
lis 17.5–18.5cm. Overall dark ‘finch’ of humid highland forest, bamboo
thickets, second growth, overgrown pastures. Usually in pairs or small groups,
foraging from ground to tree canopy, often relatively conspicuous at mid-levels;
at times with mixed flocks. Loosely flips long tail while hopping around. No
similar species in Costa Rica: puffy yellow thighs typically conspicuous,
otherwise dark slaty gray overall with variably contrasting blackish head. Imm.
duller overall, thighs pale olive and not striking. SOUNDS: Sharp, relatively low,
slightly metallic clucking tchek, may be repeated steadily; slightly gruff, sharp
metallic tink! Song a fairly rapid, chipping jangle, 1–2 secs, every few secs; longer, higher, and squeakier
jumbled chatters in duets, up to about 10 secs. STATUS: Fairly common to common, from timberline
down to 1500m in Northern Mts., down to 1700m in Central and Talamanca Mts., occasionally lower
on Caribbean slope. (Costa Rica to w. Panama.)
*YELLOW-THROATED [WHITE-NAPED] BRUSHFINCH Atlapetes [albinu
cha] gutturalis 17–18.5cm. Handsome ‘finch’ of brushy highland pastures,
second growth, forest edge, hedgerows, gardens. Often in pairs or small groups,
mainly at low to mid-levels, at times hopping on ground. SOUNDS: High, thin,
slightly sibilant tssi, and downslurred t-ssi; excited bursts of fairly rapid, squeaky
chortling in duets, to 4 secs or longer. Song an unhurried series of varied, high,
slurred to slightly piercing short whistled phrases, such as tsiíu tsieh tsi tseíiu si-i
tsiu..., 1 phrase/0.5–1.5 secs; songs can be in groups of 2–3 phrases every few
secs or a steadier flow prolonged a min or longer, especially around dawn.
STATUS: Fairly common, mainly 900–2800m. (Mexico to S America.)