The visual differences between the peacock and the peahen are quite obvious, and it's the female of the species who is far less pleasing to the eye.
http://animals.mom.com/visual-differences-between-male-female-peacocks-7038090.html
Once ostriches reach sexual maturity, it is easy to tell males from females by their coloring and behavior.
http://animals.mom.com/how-to-tell-a-male-ostrich-from-a-female-7440653.html
An overview of what ostriches eat in the wild and in captivity on farms as well as recommendations regarding feed, fruits and vegetables.
http://animals.mom.com/the-relationship-between-a-cuckoo-and-a-warbler-8098608.html
http://animals.mom.com/how-to-determine-the-sex-of-a-guinea-fowl-8459427.html
http://animals.mom.com/how-do-i-care-for-a-baby-swallow-bird-that-fell-from-its-nest-7689602.html
http://animals.mom.com/how-to-cross-a-finch-and-a-canary-bird-7072790.html
http://animals.mom.com/list-of-birds-of-prey-in-georgia-7282262.html
http://animals.mom.com/what-are-the-stages-of-life-for-a-baby-blue-jay-6276747.html
http://animals.mom.com/how-to-hatch-a-bird-egg-without-an-incubator-4636218.html
http://animals.mom.com/how-to-tame-an-alexandrine-parakeet-7627019.html
http://animals.mom.com/how-to-keep-robins-away-permanently-7990198.html
An overview of the defense mechanisms and adaptations used by peafowl, both males and females, to protect themselves.
http://animals.mom.com/how-do-peacocks-protect-themselves-8016349.html