New York Natural Heritage Program
Seaside Sparrow
Ammodramus maritimus (Wilson, 1811)

Threats [-]
The major threat is ditching and filling of wetlands in conjunction with costal development. Drying of wetlands from mosquito ditching and wetland impoundment has also been a threat. Natural succession over time of low marsh habitat into high marsh is a potential threat because high marsh generally provides lower quality habitat. Since this species occupies a narrow coastal range, populations may be displaced or impacted by major storms, fires, and oil spills. Flooding can destroy nests and young, diminishing productivity for a season as well as displacing individuals. Climatic change is a potential threat for this species especially in the southern part of the range where salt mash habitat may be lost to invasive mangroves as the climate warms. (Post and Greenlaw 1994)

Conservation Strategies and Management Practices [-]
The major management concern is protection of estuarine wetlands from development, ditching, and from invasive plants.

Research Needs [-]
The Seaside Sparrow has been well-studied in New York and the northeast (Merriam 1979, Post and Greenlaw 1994). This species is monogamous for the breeding season, however, since it often feeds outside the nesting territory research into potential extra-pair copulations, or breeding events with other patners is needed.