Henslow's Sparrow
Centronyx henslowii
A large-headed and thick-billed sparrow, found exclusively in weedy grasslands with sparse shrubs. Distinctive color combination of olive-green nape, rufous wings, and crisp black streaks below. Also note large pinkish bill and flat crown. Singing males perch conspicuously in the breeding season; otherwise very secretive, especially in migration and winter. Populations declining sharply, perhaps due to pesticide use and destruction of native grasslands. Listen for its extremely short song, easy to pass off as an insect: “ts-lick.”
Identification
Adults have streaked brown upperparts with a light brown breast with streaks, a white belly and a white throat. They have a pale stripe on the crown with a dark stripe on each side, an olive face and neck, rust-coloured wings and a short dark forked tail.<p>Measurements:
Taxonomy
- Scientific name
- Centronyx henslowii
- Authority
- (Audubon, 1829)
- Order
- Passeriformes
- Family
- Passerellidae
- Genus
- Centronyx
Range and habitat
The range and numbers of this bird are decreasing, probably due to habitat loss of the grasslands that it depends on. However, it has heavily benefited from the Conservation Reserve Program formed by the United States Department of Agriculture, which has helped to stabilize its population. Following this, it was downlisted to Least Concern from Near Threatened in 2018.<p>The Texas population was solely known from a 105-acre (0.42 km2) brushfield near Houston and disappeared after devegetation due to industrial development in the 1980s. It was considered a distinct subspecies (P. h. houstonensis: Arnold, 1983) but is today considered to fall into the range of variation of the nominate subspecies (Browning, 1990). Likewise, the South Dakotan population formerly known as P. h. occidentalis has been synonymized with the nominate. The only remaining subspecies generally (but not universally) accepted are the eastern Henslow's sparrow and the western Henslow's sparrow, whose ranges are for the most part separated by the Appalachian Mountains.
- Breeding range
- NA : c, ec
- Non-breeding range
- se USA
- Migration
- Complete migrants
Conservation
- Population trend
- rising
Photos
Distribution
Bird Calls
Other Birds

Gray Bushchat
Saxicola ferreus
Small songbird of forest edges, open scrub, and farmland, usually seen in pairs or small flocks. Male is silvery gray overall with black face and white supercilium, throat, belly, and wing patches. Female dull brown overall, with a rufous tail and faded version of the male's head pattern. Bold but not very active, usually seen perching for long periods on posts and overhead wires. Song is bright and melodious, but often has a somewhat faltering quality, trailing off towards the end. Most common call is a harsh rising “bzeeet!”.

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Chlorospingus inornatus
Fairly small tanager-like sparrow with an extremely tiny range in the foothills of eastern Panama, from around 800–1,200 m. Distinctive in range: olive-brownish overall with brighter yellow-ochre underparts, darker blackish face, and staring pale eye. Like other chlorospingus, typically found in small groups, often with a mixed-species flock. Usually sticks to the understory or middle levels of humid forest.
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