# Macaulay Library > website of the Cornell Lab of Ornithology Macaulay Library **Wikidata**: [Q111982999](https://www.wikidata.org/wiki/Q111982999) **Source**: https://4ort.xyz/entity/macaulay-library ## Summary Macaulay Library is the online database and photo archive of the Cornell Lab of Ornithology that hosts the world’s largest scientifically curated collection of bird vocalizations and animal sounds. Accessible at macaulaylibrary.org, the site lets researchers, educators, and the public stream, download, and contribute recordings and photos of birds and other wildlife. ## Key Facts - Launched in 1990 as the digital extension of the Cornell Lab of Ornithology’s sound and photo archive. - Official URL: https://www.macaulaylibrary.org/ (English-language site, last verified 13 May 2022). - Maintained by the Macaulay Library unit of the Cornell Lab of Ornithology, United States. - Classified as a website, online database, and photo archive whose main subjects are bird vocalizations, bird-song recordings, and other animal-sound recordings. - Holds the Wikidata external-ID property P10794, used to link biological taxa to their Macaulay Library taxon identifiers. - Country of origin and operation: United States. ## FAQs ### Q: What kind of media can I find on the Macaulay Library website? A: The site streams and catalogs audio recordings, photographs, and video clips, with a primary focus on bird songs and calls plus other animal vocalizations. ### Q: Who can upload content to the Macaulay Library? A: Any registered eBird or Macaulay Library user can contribute recordings and photos; submissions are reviewed for scientific accuracy before permanent archiving. ### Q: Is access to the Macaulay Library free? A: Yes, visitors can stream and download media at no cost; no subscription is required for non-commercial use. ### Q: How does the Macaulay Library relate to eBird? A: The Library serves as the media repository for eBird checklists; sightings documented in eBird can be linked directly to photos and audio stored in the Macaulay Library. ## Why It Matters Before the Macaulay Library went online, researchers who needed bird or animal-sound references relied on small private collections or hard-to-access physical archives. By putting hundreds of thousands of scientifically vetted recordings on the open web, the Library democratized access to primary-source biodiversity data. Scientists now use these time-stamped, geo-referenced recordings to study species distributions, dialect variation, population declines, and climate-driven range shifts. Educators embed the sounds in online courses, mobile apps such as Merlin Bird ID identify species in real time using the Library’s audio, and conservationists present courtroom-ready evidence of endangered species’ presence. In short, the Macaulay Library turned sound and images into reusable data, accelerating ornithology, ecology, and global conservation while giving the public an easy way to explore the natural world. ## Notable For - World’s largest scientifically curated archive of bird vocalizations and animal sounds. - Integral to the Merlin Bird ID app’s sound-ID and photo-ID features, used by millions of birders. - Each media file is permanently linked to a specific eBird checklist, creating an audiovisual record that doubles as scientific vouchering data. - Freely accessible, Creative Commons-licensed content lowers barriers for researchers in developing countries and for classroom use worldwide. - Wikidata property P1074 provides a standardized way for biodiversity databases to reference Macaulay Library taxon IDs, boosting interoperability across platforms. ## Body ### Origins and Governance The Macaulay Library began in 1990 as the digital arm of the Cornell Lab of Ornithology’s long-standing sound and photo collections. It is named after a major donor family and is maintained by the same unit that bears its name. Because the Lab is a nonprofit member of Cornell University, the Library operates under U.S. charitable and academic governance standards. ### Content Scope and Growth Although birds remain the core, the archive expanded to include amphibians, fishes, and mammals. Every recording is accompanied by metadata such as date, time, GPS coordinates, recording equipment, and the submitting observer’s eBird checklist number. Review by audio curators ensures species identification accuracy and technical quality. ### Technical Access The public website delivers streaming audio via standard web browsers; high-resolution WAV files are available for download. An application programming interface (API) lets software developers embed sounds and photos into third-party apps, most notably the Lab’s own Merlin Bird ID and eBird platforms. Wikidata’s external identifier property P1074 links each biological taxon to its Macaulay Library taxon identifier, enabling other biodiversity databases to reference the archive programmatically. ### Language and Reach The interface is English-only as of the last verification date (13 May 2022). Nonetheless, media metadata accept multilingual common names, and the CC-licensed content is reused globally in field guides, scientific papers, and museum exhibits.