ruby-crowned kinglet Directory References Images Discover How Did the Sperm Whale Get Its Name? The World’s 5 Most Commonly Used Writing Systems Timeline of the American Civil Rights Movement Nostradamus and His Prophecies Timeline of the Space Race, 1957–69 New Seven Wonders of the World How Deadly Is Quicksand? Contents ruby-crowned kinglet bird Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Regulus calendula Learn about this topic in these articles:description In kingletIn the ruby-crowned kinglet (R. calendula) of North America, the crown mark is a mere tick of red, appearing on the male only and usually concealed.Read More
