Quick Answer
To accurately field judge prairie chickens in flight, focus on the length of the tail feathers, which should extend beyond the end of the tail when the bird is in a level flight, and note the shape, size, and color of the primaries. Observe the bird's overall size, shape, and flight pattern. These characteristics can help determine the species and sex of the prairie chicken.
Key Characteristics to Observe
When field judging prairie chickens, it’s essential to note the length of the tail feathers, which should extend at least 1-2 inches beyond the end of the tail in a level flight. A longer tail is a characteristic of the greater prairie chicken, while the lesser prairie chicken has a shorter tail. The shape of the tail feathers is also a good indicator, with greater prairie chickens having feathers that are more rounded at the tip.
Flight Pattern and Behavior
Observe the bird’s flight pattern and behavior to help determine the species and sex. Greater prairie chickens typically fly with a more direct, purposeful flight, while lesser prairie chickens tend to fly in a more erratic, zigzag pattern. When a bird is flying, note its overall size, shape, and color. For example, greater prairie chickens tend to be larger and more heavily marked than lesser prairie chickens.
Binocular Use and Observation Distance
When field judging prairie chickens, it’s crucial to use high-quality binoculars to get a clear view of the bird’s characteristics. Aim for a distance of at least 200-300 yards to get a good view of the bird’s flight pattern and behavior without disturbing it. This distance also allows you to observe the bird’s characteristics without compromising its safety.
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