Animal
Eastern bluebird
Sialia sialis
A small (6–8 inch) thrush with brilliant blue back, rusty-orange breast, and white belly — and one of the great American conservation-recovery stories. Bluebird populations crashed in the early 20th century due to introduced house sparrows and European starlings competing for nest cavities, plus pesticide use. The North American Bluebird Society's coordinated nest-box program from the 1970s onward drove a multi-decade recovery. Present on Staten Island in open-habitat sites with mature edge trees.
Scientific
Sialia sialis is a 1 oz thrush with vivid blue back and wings, rusty-orange breast, white belly. Cavity nester — historically used woodpecker-excavated cavities in dead trees. Diet: insects (~70%, especially in summer) and small fruits (in fall and winter).
20th-century decline was severe — habitat loss reduced cavity-tree availability, while introduced house sparrows and European starlings outcompeted native cavity-users for the cavities that remained. Pesticide use further reduced insect prey. By the 1960s, eastern bluebird populations were estimated at 10–20% of historical levels.
Coordinated nest-box programs starting in the 1970s — championed by the North American Bluebird Society — placed millions of dimensionally-correct nest boxes (designed to exclude starlings, less effective at excluding house sparrows) across suitable habitat. Population recovery has been steady; eastern bluebirds are now common in open-habitat sites across most of their range.
On Staten Island
Present in the borough’s open-habitat sites with mature edge trees — [[mount-loretto-unique-area|Mount Loretto]] grasslands and surrounding edges, Freshkills’s emerging meadow ecosystem, and other open sites with nest-box programs. Less abundant in the borough’s denser forested areas (the Greenbelt’s interior is too closed-canopy for the species).
The species’ presence on Freshkills is meaningful — the developing meadow ecosystem is exactly the habitat type bluebirds need, and bluebirds are an indicator that the habitat is functioning.
See also
Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.
- Shares approach with: [[osprey]]
- Member of: [[animal]]
- Contained by: [[staten-island]]
Sources
- Cornell Lab of Ornithology eBird and species accounts
- North American Bluebird Society documentation
- Long-term bluebird-recovery literature
Rooted in life.
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