Plan a birding trip by finding the best nearby hotspots, combining recent species diversity, notable sightings, and BirdCast migration data. Returns ranked hotspots with migration context.

Get BirdCast migration data for a region: last night's traffic, expected species, seasonal totals, and a plain-English summary. Only available during migration seasons (Mar-Jun, Aug-Nov).

Get detailed info about a specific eBird hotspot: recent species, notable sightings, and frequency data for this time of year.

Compare multiple eBird hotspots side-by-side: unique species, shared species, notable sightings, and checklist activity at each.

Find where a specific bird species has been seen recently near a location, sorted by most recent observation.

Recommend the best day to go birding within a date range, combining BirdCast migration forecasts, historical eBird frequency data, and recent observation trends.

Get NWS weather data interpreted for birding: overnight wind direction/speed (the key migration predictor), morning forecast, and a plain-English migration interpretation. Automatically combined into migration_forecast output.

Cross-reference an eBird species sighting against iNaturalist photo-verified observations nearby. Returns confidence level and count of research-grade (photo-verified) reports.

Calculate sunrise, civil twilight, and recommended arrival time for a birding session at a given location and date.

Look up historical frequency data for a species in a region using BirdCast bar chart data. Returns peak week, current probability, and whether the species is early/on-time/late relative to its historical peak.