Which innovative bird feeder design feature, introduced in 2018, led to a 300% sales growth for the company that patented it and revolutionized the wildlife product market?

The wildlife product market has seen tremendous growth in recent years, with bird feeders being one of the most innovative segments. Companies have been developing increasingly sophisticated designs to attract specific species while deterring others (like squirrels). This poll tests your knowledge about a groundbreaking development in bird feeder technology that changed the retail landscape for wildlife enthusiasts.

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Weight-activated closing mechanism that prevents squirrels from accessing bird seed
Species-specific feeding ports that recognize bird types through AI-powered image recognition
Solar-powered heating elements that prevent seed freezing in winter
Biodegradable construction materials that decompose after 5 years of use