If you want a pet that will bond strongly with you, a bird is a wonderful choice. Given proper training and socialization, birds can be every bit as loving and affectionate as a cat or dog. Many pet birds are inseparable from their owners, some even accompanying them on daily errands such as trips to the bank or grocery store.
Ninety-five percent of bird species are socially monogamous. These species pair for at least the length of the breeding season or in some cases for several years or until the death of one mate. Monogamy allows for both paternal care and bipaternal care, which is especially important for species in which females require males’ assistance for successful brood-rearing. Among many socially monogamous species, extra-pair copulation (infidelity) is common. Such behaviour typically occurs between dominant males and females paired with subordinate males, but may also be the result of forced copulation in ducks and other anatids. Female birds have sperm storage mechanisms that allow sperm from males to remain viable long after copulation, a hundred days in some species. Sperm from multiple males may complete through this mechanism. For females, possible benefits of extra-pair copulation include getting better genes for her offspring and insuring against the possibility of infertility in her mate.Males of species that engage in extra-pair copulations will closely guard their mates to ensure the parentage of the offspring that they raise.