fly for long distance
protect against ectoparasites
exhibit secondary sexual dimorphism
keep the body warm
bill
pecten
keel
filoplume
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
ostrich
albatros
penguin
elephant bird
day light effecting the endocrine glands
search for food
search for shelter
purpose of breeding
Ostrich
Emu
Archaeopteryx
Pelican
Quill
Filoplume
Down feather
All of these
perching type
wading type
raptorial type
running type
parrot
peacock
kiwi
pigeon
Albatros
Hummingbird
Elephant bird
Penguin
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
calcareous
soft and solid
strong and solid
pneumatic
heterocoelous
acoelous
opisthocoelous
amphicoelous
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
Asia
Africa
America
Antarctica
Crow
Koel
Peacock
Ostrich
amphi-coelous
hetero-coelous
gastro-coelous
platy-coelous
syrinx
larynx
synsacrum
synzygy
ectoderm
mesoderm
endoderm
skin
mammals
reptiles
aves
lizards
Charles Darwin
Lamarck
Hippocrates
A. Muller
Kiwi
Ostrich
Penguin
All of these
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
synsacrum
sternum
pygostyle
thoracic mass
Pavo cristatus
Gallus gallus
Columbia livia
None of these
Parrot
Owl
Pigeon
Sunbird
three toes
four toes
five toes
any of these
crow, sun-bird, flower pecker
myna, peacock, parrot
weaver bird, sun-bird, flower pecker
all of these
instinct
instinct and intuition
instinct and intelligence
both and
New Zealand
India
Japan
Australia