Alright, going through that website, I can point out a couple things incorrect in it...
Quote:Their name means, "Chooser of the Slain"
Kyrja means to sing or chant. The literal translation of "Valkyrja" is "death-song".
Quote:Their main duty was to select the slain warriors, who had fallen in battle or other combat, such as quest or killing dragon, etc
This is "one" of their main functions. They also ride into battle spurring it on, singing the glory of battle. They are the anthropomorphic embodiment of the spirit of the fight, of the will to survive the battle, of the drive to conquest, etc.
Quote:The Einherjar waited for Ragnarok, in Odin's hall, called Valhalla.
Except those chosen by Freyja, the goddess of love, fertility and battle, and leader of the Valkyrja, who she brought to her halls Fólkvangr. She takes half.
Quote:They were sometimes called "Swan-maiden", because they wore garments made of swan feathers that allowed them to fly
This is true but it's missing a part of the information. They'd don the garment, turn into swans, and then fly. (Usually considered a cloak, matching Freyja's cloak of falcon feathers.)
Also, I'd like to point out that "Ability to fly" does not mean "Has wings".
Quote:Brynhild was the most famous of all the Valkyries.
Actually, that'd be Freyja... technically speaking.
I'm not gonna go into the singular stories because I don't have my books on hand (since I'm off on vacation) but this quick bit there should be enough to explain why I tend to doubt any source not in old norse or simplified old norse. There's a lot of little things that get lost or skewed in translation.
The depiction of Valkyrja as "women with wings" are a modern touch.