Do goldeneyes act differently during severe cold spells?

Changes in Habitat Use

Goldeneyes are highly adaptable to changing environmental conditions, particularly in response to severe cold spells. In temperatures below 20°F (-7°C), goldeneyes will often abandon deeper, more protected areas in favor of shallower, more exposed waters. This is often due to the reduced availability of prey in deeper areas, as well as the increased energy expenditure required to dive and forage in such conditions. Research has shown that goldeneyes will begin to utilize waters as shallow as 2-3 feet (60-90 cm) in extreme cold, increasing their vulnerability to hunting.

Foraging Behavior

In severe cold, goldeneyes will often exhibit more aggressive and competitive foraging behavior, particularly around remaining open water sources. This can lead to large concentrations of birds in a relatively small area, making them more susceptible to hunting. By understanding the goldeneye’s shift towards more aggressive foraging behavior, hunters can capitalize on this increased vulnerability by targeting areas with high concentrations of birds, such as shallow bays and river mouths. In extreme cold, it’s not uncommon to see goldeneyes competing for food in areas with as little as 1-2 square feet (0.1-0.2 square meters) of open water per bird.

Hunting Strategies

When hunting goldeneyes during severe cold spells, it’s essential to focus on areas with high concentrations of birds, such as shallow bays, river mouths, and areas with remaining open water. By identifying these areas and utilizing decoys, calling, and other attractants, hunters can increase their chances of success. In extreme cold, consider using specialized gear such as heated decoys, heated blinds, and insulated clothing to increase your comfort and effectiveness in the field. Additionally, be prepared to adapt your shooting technique to account for the goldeneye’s increased aggression and competitiveness, as they may be more likely to react quickly to perceived threats.