Unfortunately not all covens are online and very few covens actively advertise for new members.
A quick look at Wiccan Meetups, showed nothing for Belfast, however there is an Irish Pagan Federation who would be the best people to aid you:
Judy Harrow has written: 'Wicca Covens' -- subject(s): Covens, Witchcraft
Anyone, of any age, can be a Wiccan. However, certain covens may have age limits for joining.
From a quick internet search, Wicca seems to be quite prevalent and common in Arizona. Incidentally, Wiccans meet in covens not "churches."
In Wicca there are high priests and priestesses which are always open to helping new coven members learn their way around their spirituality. Fellow Wiccans are also usually open to helping people learn more about the religion. High Priests and Priestesses are usually the leaders of covens. Sometimes you can find Wicca Covens in your area via a phonebook, religious registery, or even the internet. But there are also a variety of websites online dedicated to educating and connecting Wiccans. If you are looking for someone to just talk to about Wicca and someone who could maybe help you figure out your own Wiccan path feel free to contact me: dawn@lonealaskangypsy.com anytime.
There is no verifiable information about specific vampire covens in Salem, Oregon. Vampire covens are typically elements of folklore and fiction, rather than reality.
nio vampier are not in the world only a bat Witches come in covens. Vampires come in clutches.
Yes. There are probably many. Covens are formed in many large towns and cities all over the world.
Alexandrian, founded by Alex Sanders and his wife Maxine, is an offshoot of Garnerian Wicca, founded by Gerald Gardner so the similarities are more prominent than the differences. It is difficult to write general statements about both traditions as each has covens that may practice slightly differently than other covens in their own respective traditions. Generally speaking: Both are initiatory, have 3 degrees, are considered British Traditional Wicca (BTW) and are more formal and ceremonial in nature than say, Reclaiming Wicca. Neither accept or recognize self-initiations (usually). A few differences: Alexandrians attribute the athame to air and wand to fire (Gardnerians athame = fire, wand = air), Gardnerians make more regular use of ritual nudity than Alexandrians.
Usually, yes - especially if the coven has more than two people. The leaders are usually the most experienced in the Wiccan coven. Depending on their gender, they are called the High Priest or the High Priestess.
Note: Teen Wicca are very rare and normally come from a Wicca family, covens will not typically initiate under 18's for a number of reasons including to protect themselves legally - for the most part is someone claims to be Wicca when in their teens they are lying, usually ignorant about Wicca.There are many forums for Pagan teens, it's simply a matter of looking around to find chat rooms and forums that have people you get along with and with people who share similar interests.
There are many vampire covens online. They all claim to be real. Some examples would be the blood coven and vamp coven.
Short answer, yes. There is no restriction in Wicca generally regarding what you can and can't wear as long as it has some meaning to you. However certain covens might have their own restrictions that pertain to their membership.