Water sparrow : The reed warbler.

Water sparrow : The reed bunting.

Example:


Taxonomy
SPARROW, Water-Quality, Nutrients, watersheds, stream water-quality, Surface Water, the Gulf of Mexico, model, NAWQA, model predictions, the Mississippi River, Mississippi River Basin, headwater streams, Search USGS, quality measurements, national models, nitrogen and phosphorus, regional interpretation.

Defination from the web:
SPARROW, a modeling tool for the regional interpretation of water-quality monitoring data. ... The role of headwater streams in downstream water quality. New England SPARROW data viewer. New England Interstate Water Pollution Control Commission (NEIWPCC) ...