Albatros
Hummingbird
Elephant bird
Penguin
B. Hummingbird
Tail only
Wings only
both and
beneath the contour feathers.
peacock
emu
penguin
ostrich
parrot
peacock
kiwi
pigeon
Quill
Filoplume
Down feather
All of these
middle of the trachea
at the base of trachea where it divides into bronchi
base of tongue
none of these
New Zealand
India
Japan
Australia
Parrot
Owl
Pigeon
Sunbird
ostrich
albatros
penguin
elephant bird
a type of air sacs related to ventilation
a fork shaped structure fused and formed by clavicles
a strucutre present in trachea for producing sound
none of these
Asia
Africa
America
Antarctica
larynx
syrinx
synsacrum
pygostyle
grain-eating birds
meat-eating birds
fruit-eating birds
insect-eating birds
swan
falcon
penguin
eagle
finch
humming bird
weaver bird
shrew
Dr. Salim Ali
Dr.MS.Mani
Dr.J.C.Bose
Dr. Jogendra
calcareous
soft and solid
strong and solid
pneumatic
mammals
reptiles
aves
lizards
perching type
wading type
raptorial type
running type
Ostrich
Penguin
Emu
Albatros
Albatros
Hummingbird
Elephant bird
Penguin
two occipital condyles
one occipital condyle
many occipital condyles
any of these
Bernhard Katz
Alick Isacs
Charles Darwin
Andreas Wagner
syrinx
larynx
synsacrum
synzygy
sharp eyesight
keen smelling power
both and
sharp eyesight and poor smelling power
homiothermic condition and viviparity
horny jaws and four-chambered heart
ossified skeleton and four-chambered heart
bipedal locomotion and body covered with feathers
heterocoelous
acoelous
opisthocoelous
amphicoelous
monocondylic
dicondylic
amphicondylie
none of these
bill
pecten
keel
filoplume
Kiwi
Ostrich
Penguin
All of these
instinct
instinct and intuition
instinct and intelligence
both and