Wildlife Clinic

Species

Henslow's sparrow

Centronyx henslowii

A shy, olive-headed sparrow of damp grasslands whose song is a tiny hiccup 'tsi-lick'.

A Henslow's sparrow perched on a thin branch in Georgia, with a flat olive-green head, a large pale bill, rusty wings and fine dark streaks across its buff breast.

Photo Dan Vickers (opens in a new tab) / iNaturalist, CC BY 4.0 (opens in a new tab)

At a glance

Size
About 12 to 13 cm long
Weight
About 11 to 15 g
Habitat
Wet grassy fields and pine savannas in winter
Diet
Seeds and insects
In Georgia
An uncommon winter visitor
Voice
A short, hiccupping "tsi-lick"
Rabies vector
No

Identification

Key marks
Large, flat head; olive face; streaked breast; rusty wings
Told apart from
Grasshopper sparrow, which has an unstreaked breast
Where to look
Damp grassy fields and burned pine savannas in winter

Behaviour

Henslow's sparrows run through grass rather than flying and are very hard to see.

Why they matter

Henslow's sparrows declined sharply as grasslands were lost. They depend on fire-maintained grasslands and pine savannas in winter.

Reproduction and lifecycle

Nest — A cup on or near the ground in dense grass
Eggs — Usually three to five
Incubation — About 11 days
Chicks — Fed by both parents
Lifespan — A few years

Living around people

  • Prescribed fire keeps their winter habitat open.

Misconceptions

  • Birds that do not fly away are tame. Henslow's sparrows run and hide instead.

Related species

Seasonal activity

When this species is breeding, and when there are nests on the ground. Mowing during the shaded months is how most nests are found.

Breeding and active nests by month for this species
JanFebMarAprMayJunJulAugSepOctNovDec
BreedingJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
Active nestsJan: noFeb: noMar: noApr: noMay: noJun: noJul: noAug: noSep: noOct: noNov: noDec: no
NotesWinteringWinteringWinteringLeavingNesting farther northNestingNestingPresent in the northMigratingArrivingWinteringWintering

Where it lives

Recorded in 28 states and provinces. Each one links to the other animals there, and to the rehabilitators licensed for them.

If you found one

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