Any time he has access to a bitch (breeding female) in heat, assuming both the male and female are fertile and compatible, and involving some aspects of chance (whether or not fertilization actually occurs).
A sire is a male dog who is the father of a litter of puppies.
A sire is the Father of a horse
Sire, Male. Dam, Female Offspring are Foals.
A goat's sire is called a "buck" or "billy." The term "sire" refers to the male parent, while "buck" specifically denotes a male goat. In breeding contexts, it's important to distinguish the sire from other terms, such as "doe" for a female goat.
A male dog is just called a "dog" unless he is used for breeding- then he is referred to as a "stud" or "sire" of a litter.
It is called the horse's "sire"
a tomcat is a male.
In English there are no masculine or feminine forms. English uses gender specific nouns for male or female.The word 'sire' has two meanings:The noun 'sire' is a title to address a male regent or monarch.The corresponding noun to address a female regent or monarch is ma'am.The noun 'sire' is a word for a the male parent of some animal species.The corresponding noun for the female parent of those animals is dam.
Foal
sire and lady
Sire. An intact male horse is a Stallion.
When discussing parentage of a horse, the dam is female and the stud or sire is male.