This database is updated constantly. Pennsylvania Breeding Bird Atlas Consists of over 320,000 records of breeding bird locations throughout Pennsylvania. Each record includes information on location, breeding behavior, date or year of observation, and observer's name and address. Data were collected during 1983-1989. Consists of manual, map, and computer files containing about 9,000 point locations and ecological information on rate and endangered plants and animals, communities, geographic features, and ecological reserves.
Species consist of most resident and migratory vertebrates and selected invertebrates.