Largest organisms were related to the ostrich. They exceeded in height and . The last of the elephant birds became extinct about 300 years ago. Of almost exactly the same upper proportions as the largest elephant birds was "Dromornis stirtoni" of Australia, part of a 26,000-year-old group called mihirungs of the family Dromornithidae. The largest carnivorous bird was "Brontornis", an extinct flightless bird from South America which reached a weight of and a height of about . The tallest carnivorous bird was "Kelenken", which could reach 3 to 3.2 meters in height and 220 to 250 kilograms. The tallest bird ever was
Scrambled Eggs (1939 film) in their nests up above tell him to "Be quiet!" and boast about their own well-behaved families (i.e., their eggs), Peterkin decides to get back at them. He sneaks up the massive "Maternity Tree", and covertly switches all the eggs in all the nests. Soon, the eggs hatch — each bird couple has a baby bird of a type different from themselves: for example, the canaries hatch a pirate-talking parrot; the tiny English sparrows hatch a huge mockingbird, who quickly begins "mocking" the sparrow father by speaking in an English accent. The father birds, upset and very suspicious of their