How do you tell the difference between a male bird and a female bird?
467433
The male bird is usually brighter color.
1064379
No. remember the sex depends on the sperm so that means that if a sperm carring the girl coding fertilizes the egg then it will be a girl but if one carring the boy coding fertilizes the egg then it will be a boy. \n\nAdded to this is that each sperm carries different coding so besides there being male and female sperm there are differences among them all.
341330
Parrots ARE smarter than doves, but you're right about the muscles being the deciding factor rather than the brain. Given the sounds I've heard coming from both, parrots have more "agile" syrinxes than doves.
486049
In the pre-spawning time of year (early spring), the females have fatter bellies than males. Any bass over 5 lbs. is more than likely a female. Being an aquarium hobbyist, the only definative way to tell the difference is to "vent" the fish with intails a knife and the vent/exit of the fish.
46361
Female birds have usually only one functional ovary (the left one); the right-side oviduct and ovary do not develop. Exceptionally, in some groups such as falcons and eagles both ovaries are functional. \nThe ovary looks like a grape-bunch due to the immature ova it holds. Once an ovum starts to develop, it grows enormously and travels through the oviduct where it acquires its membranes and shell.
728283
The male and female reproductive "tracts" are homologous.  This means that they're similar in structure and evolutionary origin, but are different in function.
1118762
The female is smaller and usually a lot uglier. Like brown while the male is blue.
242478
I believe your are referring to the black billed magpies. They have a black head and breast and a white belly and shoulder. Their wings are actually tinted with blue green but if you are not looking for the color you may not see it.
429981
They are hermaphrodites.  Each delivers sperm to the other.  Each later lays eggs.
546211
When we are concieved the chromosones dont distinguish between male and female until after the nipples have started to develop.\n\nWith women the cells continue to specialise and produce breast tissue with men they don't.
110320
Most birds have a cloaca, which is the same for males and females and is also used for both uriination and defecation. The only bird known to have a penis is a species of duck.
718044
No, they don't.  Humans males also have the same number of ribs as female humans.
578345
Nothing, really.  The only difference between a male and a female is that males have more testosterone, which can go to their head real fast.
329232
It usually changes, for mammals and a few birds:\n\n- burro, burra (donkey)\n- caballo, yegua (horse, mare)\n- gallo, gallina (rooster, hen)\n\nBut usually for insects and other birds there is one word (which may as well be masculine or feminine) to refer to the species:\n\n- mosca (f) (fly)\n- mosquito (m)\n- pulga (f) (flee)\n- piojo (m) (louse)\n- canario (m) (canary)\n\nThese words (and some others) are used to refer to any animal of the species, either a male or a female.
322480
Birds actually go through the process of fertilizing an egg just like humans, except for birds this happens outside of the body whereas for humans it happens inside the body. So in reality, no actual 'sex' happens for birds...the male bird fertilizes the egg that the female laid, and the female sits on the egg while it gestates. \nGoodluck with that bird porn site, though.
801674
No, they dont. Birds have a different "set up" as far as sex goes. Both sexes look the same, just a single opening. This is used for both elimination and sex. The male mounts the back of the female. He twists his back end around and both openings, called the cloacals, touch. He releases the sperm into her and thats how fertilization takes place.
1079080
no they are a different species