What does the Hummingbird have in common with the Kiwi (bird, not fruit)?
Hummingbirds and Kiwis have the largest eggs, compared to their body size, of any bird. For both, the egg is about 25% of the female's body size, the equivalent of a 120 pound woman giving birth to a 30 pound baby. Which bird do you think has the smallest egg, compared to body size? The ostrich!