Top 10 Tallest Birds in the World
Sl No Name of the Bird Average Height Scientific Name 1 Common ostrich 2.8 meters Struthio camelus
2 Somali ostrich 2.75 meters Struthio molybdophanes 3 Emu 1.9 meters Dromaius novaehollandiae 4 Southern cassowary 1.8 meters Casuarius casuarius 5 Sarus crane 1.8 meters Antigone antigone 6 Northern cassowary 1.8 meters Casuarius unappendiculatus
7 Wattled crane 1.75 meters Grus carunculata 8 Greater rhea 1.7 meters Rhea americana 9 Japanese crane 1.6 meters Grus japonensis
10 Jabiru 1.53 meters Jabiru mycteria
Top 10 Fastest Birds in the World
Sl No Name of the Bird Maximum Air Speed Scientific Name 1 Peregrine falcon 389 km/h or Falco peregrinus 242 mph 2 Saker falcon 320 km/h or Falco cherrug 200 mph 3 Golden eagle 322 km/h or Aquila chrysaetos 200 mph 4 Gyrfalcon 187–209 km/h Falco rusticolus or 116–130 mph 5 White-throated 169 km/h or Hirundapus caudacutus needletail 105 mph 6 Common swift 166 km/h Apus apus 7 Eurasian hobby 159 km/h Falco subbuteo 8 Frigatebird 153 km/h Fregata 9 Spur-winged goose 143 km/h Plectropterus 10 Red-breasted 130 km/h or Mergus serrator merganser 81 mph
Top 10 Largest Birds in the World
Sl No Name of the Bird Maximum Mass Scientific Name 1 Common ostrich 156.8 kg Struthio camelus 2 Somali ostrich 130 kg Struthio molybdophanes 3 Southern cassowary 85 kg Casuarius casuarius 4 Northern cassowary 75 kg Casuarius unappendiculatus 5 Emu 70 kg Dromaius novaehollandiae 6 Emperor penguin 46 kg Aptenodytes forsteri 7 Greater rhea 40 kg Rhea americana 8 Domestic turkey/wild 39 kg Meleagris gallopavo turkey 9 Dwarf cassowary 34 kg Casuarius bennetti 10 Lesser rhea 28.6 kg Rhea pennata
Top 10 Smallest Birds in the World
Sl No Name of the Bird Average Weight and Scientific Name Length 1 Bee Hummingbird 5-6 centimeters, 1.7 grams Mellisuga helenae 2 Costa’s Hummingbird 8 centimeters, 3 grams Calypte costae 3 Weebill 8 centimeters, 6 grams Smicrornis brevirostris 4 Goldcrest 9 centimeters, 5.7 grams Regulus regulus 5 Simple Firecrest 9.3 centimeters, 5.5 grams Regulus ignicapilla 6 Pardalote 9.5 centimeters, 6 grams Pardalotidae 7 Brown Gerygone 10 centimeters, 6 grams Gerygone mouki 8 Verdin 10 centimeters, 7 grams Auriparus flaviceps 9 Golden-headed 10 centimeters, 8 grams Cisticola exiles cisticola 10 Lesser Goldfinch 10 centimeters, 10 grams Spinus psaltria