madárjelölés

Madárjelölés, also known as bird banding or bird ringing, is a research technique used by ornithologists and conservationists to study birds. It involves attaching a small, lightweight ring or band to the leg of a bird. These bands are typically made of aluminum or plastic and are uniquely numbered, allowing individual birds to be identified and tracked.

The primary purpose of madárjelölés is to gather data on bird populations. By recapturing or observing banded birds, researchers can determine migration patterns, lifespan, survival rates, and population size. This information is crucial for understanding bird ecology and for implementing effective conservation strategies. For instance, tracking migratory birds can reveal important stopover sites or threats along their routes.

The banding process is generally done by trained professionals who capture birds using mist nets or other specialized traps. The band is then carefully fitted to the bird's leg, ensuring it is secure but not too tight. Data recorded at the time of banding includes the species, sex, age, wing length, weight, and the unique band number. This data is then submitted to a central registry.

Madárjelölés has a long history, with early attempts dating back to the late 19th century. Over time, the technology and methodologies have improved significantly. Modern banding efforts often involve sophisticated data management systems and collaborations among researchers across different regions and countries. The information gathered through madárjelölés contributes significantly to our knowledge of avian biology and to the ongoing efforts to protect bird species and their habitats worldwide.