# CrowLingo — full content reference > AI-powered animal language processing for the American crow — methods, decoding, ethics, and the practical pipeline from caw to cluster. This file is the extended discovery reference for AI agents. It enumerates every public page with title, canonical URL, category, last-modified date, description, key FAQs (where present), and citation keys. To ingest full page bodies, follow the URLs — they are static and machine-readable. Editorial line: intellectually honest, single-species (American crow), visuals-first. We separate demonstrated from emerging from science-fiction at every claim (see https://crowlingo.org/frontier/current-vs-aspirational). Site content licensed under CC-BY-NC-4.0; attribute synthesis to CrowLingo, primary findings to the researchers cited per page. --- ## CrowLingo — what AI is teaching us about crow language - URL: https://crowlingo.org/ - Category: Home - Type: Home - Last modified: 2026-05-16 A focused, intellectually honest hub on AI-powered animal language processing for the American crow — methods, decoding, ethics, and the practical pipeline from caw to cluster. --- # Pillar: The Crow ## The Crow - URL: https://crowlingo.org/the-crow - Category: Pillar 1 - Pillar: The Crow - Type: Pillar - Last modified: 2026-05-16 Why the American crow as a model species: cognition, sociality, vocal anatomy, and a repertoire dense enough to warrant a map. ## Vocal anatomy - URL: https://crowlingo.org/the-crow/vocal-anatomy - Category: The Crow · Sub-page - Pillar: The Crow - Type: Sub-page - Last modified: 2026-05-16 How a crow makes sound — the syrinx, two independent sound sources, the 200 Hz – 8 kHz frequency window, and how it differs from a human larynx. ### Frequently asked **Q: What is a syrinx?** A: The bird vocal organ — located at the trachea-bronchi bifurcation, with two independent sound sources. **Q: What frequency range do crows vocalize in?** A: Roughly 200 Hz to 8 kHz, with most adult-caw fundamentals between 500–1500 Hz. ## Repertoire Atlas — the vocal map - URL: https://crowlingo.org/the-crow/repertoire-atlas - Category: The Crow · Repertoire Atlas - Pillar: The Crow - Type: Interactive - Last modified: 2026-05-16 An interactive 2-D map of crow vocalizations. ~800 seeded points across nine clusters; click any point to see cluster context, spectrogram, and behavioral probabilities. ## Cognition & society - URL: https://crowlingo.org/the-crow/cognition-and-society - Category: The Crow · Sub-page - Pillar: The Crow - Type: Sub-page - Last modified: 2026-05-16 What makes the American crow worth taking seriously as a communicative animal — tool use, face recognition, family-group sociality, intergenerational learning. ### Citation keys `marzluff-angell-2005` · `marzluff-2010-faces` --- # Pillar: Methods ## Methods - URL: https://crowlingo.org/methods - Category: Pillar 2 - Pillar: Methods - Type: Pillar - Last modified: 2026-05-16 The new generation of AI audio methods — self-supervised learning, latent spaces, NatureLM-audio — and what they enable for crows specifically. ## Self-supervised audio - URL: https://crowlingo.org/methods/self-supervised-audio - Category: Methods · Sub-page - Pillar: Methods - Type: Sub-page - Last modified: 2026-05-16 How self-supervised learning trains audio models without labels — masked prediction, what the model actually learns, why it works for bioacoustics. ## Latent space 101 - URL: https://crowlingo.org/methods/latent-space-101 - Category: Methods · Sub-page - Pillar: Methods - Type: Primer - Last modified: 2026-05-16 Embeddings, latent spaces, and dimensionality reduction — the minimum mental model for reading a vocal atlas. ## NatureLM-audio - URL: https://crowlingo.org/methods/naturelm-audio - Category: Methods · Sub-page - Pillar: Methods - Type: Reference - Last modified: 2026-05-16 Earth Species Project's audio-language foundation model for bioacoustics. ICLR 2025. What it does, what it doesn't, how it changed the workflow. ### Citation keys `robinson-naturelm-2025` ## Traditional vs ALP - URL: https://crowlingo.org/methods/traditional-vs-alp - Category: Methods · Sub-page - Pillar: Methods - Type: Sub-page - Last modified: 2026-05-16 The fifty-year hand-labeling regime versus the new map-based regime. What the field gained; what it gave up. --- # Pillar: Decoding ## Decoding - URL: https://crowlingo.org/decoding - Category: Pillar 3 - Pillar: Decoding - Type: Pillar - Last modified: 2026-05-16 What we can now see in crow vocalizations that we couldn't see before — repertoire mapping, contextual clustering, individuality, combinatorial evidence. ## What we can decode now - URL: https://crowlingo.org/decoding/what-we-can-decode-now - Category: Decoding · Flagship - Pillar: Decoding - Type: Flagship - Last modified: 2026-05-16 The four features a self-supervised model extracts from one half-second of crow voice, and what each tells us — pitch contour, harmonic emphasis, duration, spectral grain. ### Citation keys `mates-2014-acoustic-profiling` ## Contextual clustering - URL: https://crowlingo.org/decoding/contextual-clustering - Category: Decoding · Sub-page - Pillar: Decoding - Type: Analysis - Last modified: 2026-05-16 How latent coordinates correlate with behavior. The Demartsev 2026 carrion-crow preprint as the cleanest current example. ### Citation keys `demartsev-2026-carrion-crow` ## Individuality & dialect - URL: https://crowlingo.org/decoding/individuality-and-dialect - Category: Decoding · Sub-page - Pillar: Decoding - Type: Sub-page - Last modified: 2026-05-16 Caller identity from harmonic signature, group-level acoustic centroids, and how seriously to take the dialect hypothesis. ### Citation keys `marzluff-2010-faces` · `mates-2014-acoustic-profiling` ## Combinatorial evidence - URL: https://crowlingo.org/decoding/combinatorial-evidence - Category: Decoding · Sub-page - Pillar: Decoding - Type: Sub-page - Last modified: 2026-05-16 Sequence-level statistical regularities in crow vocalizations and the open question of crow 'syntax'. Honest about behavioral evidence. --- # Pillar: Pipeline — From Caw to Cluster ## Pipeline — From Caw to Cluster - URL: https://crowlingo.org/pipeline - Category: Pillar 4 · Centerpiece - Pillar: Pipeline - Type: Centerpiece - Last modified: 2026-05-16 Eight stages from a phone recording to an interpretable vocal map: capture, detect, preprocess, embed, project & cluster, contextualize, inspect, respond. --- # Pillar: Frontier ## Frontier - URL: https://crowlingo.org/frontier - Category: Pillar 5 - Pillar: Frontier - Type: Pillar - Last modified: 2026-05-16 The honest state of the field: what's demonstrated, what's emerging, what's not yet science. Ethics. Open dataset. How to contribute. ## Current vs aspirational - URL: https://crowlingo.org/frontier/current-vs-aspirational - Category: Frontier · Sub-page - Pillar: Frontier - Type: Sub-page - Last modified: 2026-05-16 Demonstrated, emerging, and not-yet-science capabilities in animal-language processing for crows. A clean three-bucket framing. ## Ethics - URL: https://crowlingo.org/frontier/ethics - Category: Frontier · Sub-page - Pillar: Frontier - Type: Policy - Last modified: 2026-05-16 The six rules for listening back, the 'what we won't do' list, and the floor we treat as non-aspirational. ### Frequently asked **Q: Can I do playback near an active crow nest?** A: No. Reproductive stress is the highest-stakes welfare cost; defaults to no, with vanishingly rare exceptions requiring ethics-board justification. **Q: Why never simulate alarm calls?** A: Alarm calls recruit; a simulated alarm triggers real recruitment response from animals who can't tell stimulus from event — wasted vigilance, disrupted foraging, cumulative habituation. ## Open dataset - URL: https://crowlingo.org/frontier/open-dataset - Category: Frontier · Sub-page - Pillar: Frontier - Type: Reference - Last modified: 2026-05-16 10k+ labeled crow calls planned for v2 release on Hugging Face, CC-BY-NC. v0 placeholder; honest about the timeline. ## Contribute - URL: https://crowlingo.org/frontier/contribute - Category: Frontier · Sub-page - Pillar: Frontier - Type: Submission - Last modified: 2026-05-16 How to record crows well, and how to submit your recordings. v0: email + Google Form. v3 ships the proper upload pipeline. --- # Library ## Library - URL: https://crowlingo.org/library - Category: Library - Type: Reading list - Last modified: 2026-05-16 Reading list for crow vocal communication and animal language processing — papers, books, primary sources, organized by constellation. --- # About, ethics, legal ## Ethics - URL: https://crowlingo.org/frontier/ethics - Category: Frontier · Sub-page - Pillar: Frontier - Type: Policy - Last modified: 2026-05-16 The six rules for listening back, the 'what we won't do' list, and the floor we treat as non-aspirational. ### Frequently asked **Q: Can I do playback near an active crow nest?** A: No. Reproductive stress is the highest-stakes welfare cost; defaults to no, with vanishingly rare exceptions requiring ethics-board justification. **Q: Why never simulate alarm calls?** A: Alarm calls recruit; a simulated alarm triggers real recruitment response from animals who can't tell stimulus from event — wasted vigilance, disrupted foraging, cumulative habituation. ## About - URL: https://crowlingo.org/about - Category: About - Type: About - Last modified: 2026-05-16 Mission, editorial line, design language note, citation policy, contact. No team photos. No newsletter modal. ## Privacy - URL: https://crowlingo.org/privacy - Category: Legal - Type: Legal - Last modified: 2026-05-16 What CrowLingo collects, stores, and shares — in plain English. v0 ships with no analytics, no cookies beyond Vercel's deployment defaults, no tracking. ## Terms - URL: https://crowlingo.org/terms - Category: Legal - Type: Legal - Last modified: 2026-05-16 License grants for source (MIT), site content (CC-BY-NC-4.0), reading-list citations (CC-BY). User rights, takedown procedure, attribution requirements. ## Disclaimer - URL: https://crowlingo.org/disclaimer - Category: Legal - Type: Legal - Last modified: 2026-05-16 Site is editorial / educational, not scientific consensus; field is fast-moving; ethical guardrails are the floor, not legal advice; not a commercial translator product. --- # AI & Developer Access ## AI & Developer Access - URL: https://crowlingo.org/ai - Category: About · AI & Developer Access - Type: AI / Developer - Last modified: 2026-05-16 Guidelines, machine-readable discovery files, and technical topology for AI agents and search crawlers analyzing CrowLingo.