It would depend on whether or not they had their female organs removed. If you still have ovaries and a uterus, then yes.
transgenders are people who are categorized in both male and female. They can be heterosexual, homosexual, bisexual etc.
There are female to male transgender people everywhere! St. Louis has a couple of online support resources for FTMs that can be easily found by web search.
That is called being a "she-male". Most she-males are actually transsexuals, not transgenders (there is a major difference)
Thankfully, female guinea pig don't menstruate.
No female bird menstruates. They lay eggs, they do not have live birth, there is no reason to menstruate or anything to do it with.
Whether transsexual men (female-to-male) have periods depends on if they are taking hormones or have had surgery. If they are taking testosterone, they won't menstruate. If they have had surgery, they certainly won't menstruate.If you are misusing the term "transsexual men" to refer to male-to-female transsexual persons, no, transsexual women won't ever menstruate, since they were born lacking ovaries and a uterus.
No they don't. They go into heat on average about every 6 to 10 days. Only during that time will they allow a male to mate with them and can become pregnant.
No, not every female gets her period. If talking exclusively of those who are biologically female there are those who don't have the anatomy to menstruate or their bodies don't produce the hormones needed to have a menstrual cycle. Pre-pubescent girls don't menstruate and women past menopause don't menstruate, also women who are pregnant won't menstruate during pregnancy (sometimes for longer if they breastfeed), and women who have a hysterectomy to remove the uterus.
Spayed female cats and dogs do not menstruate.
There's no such thing. Men have no uterus, and thus do not menstruate.
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Birds do not menstruate ("have periods"). Only mammals menstruate. If a female bird has blood or non-feces discharge coming out of her cloaca, she needs immediate medical attention. Birds can bleed to death very quickly.