1. Smallest bird   Hummingbird   Kiwi   Kingfisher   Kittiwake   Sparrow   Hint Half-n-half Clue   2. Tallest land animal   Rhinoceros   Polar bear   Antelope   Elephant   Giraffe   Half-n-half Clue   3. Largest bird   Peacock   Vulture   Ostrich   Albatross   Eagle   Half-n-half Clue   4. Heaviest bird of prey   Andean Condor   Peregrine Falcon   Bald Eagle   Kori Bustard   Great Bustard   Half-n-half Clue   5. Longest cells in the human body   Brain Cells   Megakaryocyte (blood cells)   Nerve Cells (Neurons)   RBC   WBC   Half-n-half Clue   6. Bird with the largest egg   Ostrich   Albatross   Turkey   Mute Swan   Geese   Half-n-half Clue   7. Bird with the largest wing span   Albatross   Ostrich   Eagle   Falcon   Pelican   Half-n-half Clue