Here's How You Can Track Migrating Birds Using Radar

Why It Matters

The platform democratizes high‑resolution migration data, enabling better wildlife management and informing climate‑related research.

Key Takeaways

• Radar data visualizes real-time U.S. bird migration patterns.
• Researchers separate birds from weather, insects, and bats using signatures.
• Bird flocks move north‑south, storms move west‑east, aiding classification.
• Speed and shape differentiate birds from insects and bat emergence patterns.
• Public can view local migration counts, e.g., 2.6 million over New York.

Summary

A new interactive website maps real‑time bird migration across the United States, forecasting movements for the coming days and allowing users to see how many birds pass over their specific location.

The data comes from weather‑radar systems that emit radio waves and record the energy reflected back. Scientists filter out non‑avian echoes by exploiting differences in movement patterns, shape, and speed: storms travel west‑to‑east, while flocks head north‑south; birds form chaotic, dispersed blobs, whereas insects move slower and bats create a characteristic donut‑shaped emergence.

For example, the site predicts roughly 2.6 million birds over New York tonight. Researchers also note that bat colonies can be distinguished by timing and cave‑origin cues, and that velocity thresholds separate insects from faster‑flying birds.

By turning raw radar returns into accessible maps, the tool gives birders, policymakers, and conservationists actionable insight into migration timing and routes, supporting habitat protection and climate‑impact studies.

Original Description

Enough birds are migrating right now that its showing up on radar — and here is how you can track them. Scientists called radar aeroecologists take radar data that includes everything in the lower atmosphere (birds, bats, insects, storms and more) and clean it up to isolate bird activity. Those maps are available online via BirdCast and let you see how many birds are migrating near you on any given day.

🎤📝: Marta Hill

📷: BirdCast, National Weather Service, Getty

🎞️: Kelso Harper

#birds #birdmigration #birder #birding #radar