how to determine the sex of similar birds in a group .?

Question

how can we know male & female in a group of similar birds as we know in case of animals .

Answer 1

That gets complicated, depending on the species. Some are easily identifiable by having different colors, markings, or sizes.

Others can only be told apart by examining the cloaca during breeding season.

If there's a particular species you're interested in, google the name of the species and "sexing" to get methods used.

Answer 2

Determining the sex of birds depends on each and every species, but most of the time the colours and sometimes "style" (shape) of the plumage become good indicatives of whether the individuals in a flock are male or female.

A good example of sex identification using plumage colour can be seen in the Cardinal. The females are dull brown, while the males are bright red.

Female cardinal: http://images.google.com/images?as_q=female+cardinal&hl=en&output=images&rlz=1T4GGLJ_enID247&svnum=10&btnG=Google+Search&as_epq=&as_oq=female&as_eq=male+males+females+pair&imgtype=&imgsz=&as_filetype=&imgc=&as_sitesearch=&safe=images&as_st=y
Male cardinal: http://images.google.com/images?as_st=y&svnum=10&hl=en&rlz=1T4GGLJ_enID247&q=male+cardinal

An example of identifying with the style of the plumage is the resplendent quetzal. Females have short tail-feathers while the males have VERY long ones.

Female quetzal: http://fireflyforest.net/images/firefly/2007/June/Pharomachrus-mocinno-7.jpg
Male quetzal: http://jackmaryetc.com/Travel/Americas/CostaRica/CBimages/ResplenQ.jpg

However, with birds like budgies determining their sex becomes difficult because you have to look at the colour of the cere (area of the nostrils) which means you have to look closely at them. With other bird species, such as starlings, you can't even tell their sex because both sexes look identical. You can only find out if you see them mating or by getting them DNA sexed.

Answer 3

Of what I know about most birds, only the MALE will be the most vocal of any breed of birds. Most of the time the females usally make one sound over and over again and that sound being her only tweets all her life.
Now of course depending the breed of bird, we would tell you if you were more clear on what breed you are asking about. {:O)