Field Sparrow (Spizella pusilla) lives in open woodland across Eastern North America. It feeds on seeds and insects. Its conservation status is Least Concern.
Fascinating facts about the Field Sparrow
- It measures about 140 mm in length and weighs roughly 12.5 g. The head is grey with a rust-coloured crown, a white eye-ring and a pink bill. Its upperparts are brown streaked with black and buff, the breast is buff, the belly white and the tail forked.
- The field sparrow occurs in two distinct colour morphs, one that is greyer and another that is more rufous. Both morphs share a grey face, a rusty crown and a white eye-ring, while the rest of the plumage follows the species' typical pattern. Males and females look alike, although males are slightly larger. This variation means individuals can look quite different even though they belong to the same species.
- Pairs often breed more than once in a season, and each time they construct a new cup-shaped nest on the ground. The nest is hidden beneath a bush or clump of grass, and as the season advances and vegetation grows, each successive nest is built higher off the ground. This pattern reflects the birds' response to changing cover during the breeding period. The habit of rebuilding higher nests helps protect later broods from ground predators.
- The male field sparrow sings from a higher perch such as a shrub or fencepost, a behaviour that marks his ownership of the nesting territory. His song is a series of sad whistles ending in a trill that sounds like an accelerating bouncing ball coming to rest. Each rendition lasts about four seconds, giving a distinctive, lingering call that can be heard across the low grassland. This vocal display helps attract a mate and warn rivals of his claim.
- Field sparrow numbers expanded as early settlers cleared forests across eastern North America, providing the open, shrubby habitats the species favours. Although it remains a common bird with a wide range, recent observations suggest a slow decline in its population. Despite this trend, the International Union for Conservation of Nature still classifies it as a species of least concern, reflecting its overall stability across its range.
Sources
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At a glance
RangeEastern North America
HabitatOpen woodland
DietSeeds and insects
About the Field Sparrow
As the first light of dawn creeps over the rolling hills, the field sparrow stirs, its gentle song a melodic whisper that weaves through the tall grasses and wildflowers, a serene serenade to the awakening landscape. With a flutter of its streaked brown wings, it takes to the air, its small form darting and weaving with an effortless agility, as it pursues the hidden insects and seeds that sustain it. In this sun-kissed world of open fields and woodland edges, the field sparrow is a master of subtlety, its unassuming presence a testament to the beauty of simplicity.
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