Four Stags of Yggdrasill

The stags are attested in Old Norse poetic material associated with Yggdrasill, the immense ash-tree at the centre of the Norse cosmos. Textual summaries note the four named stags—Dáinn, Dvalinn, Duneyrr and Duraþrór—living among Yggdrasill's branches; these attestations occur in Eddaic/Poetic-Edda tradition where the world-tree and its inhabitants (including Níðhöggr and an unnamed eagle) are described as part of the cosmological layout of the Nine Worlds.

Sources describe them simply as stags (harts) by name—Dáinn, Dvalinn, Duneyrr and Duraþrór—feeding among Yggdrasill's branches. The Poetic Edda imagery records them "craning their necks upward to chomp at the branches," and notes that morning dew gathers in their horns. Beyond being named harts, the supplied excerpts give no further details such as color, exact size, or other distinctive markings.

The primary behaviors recorded in the sources are their feeding among the branches of Yggdrasill and craning their necks upward to nip at the boughs. The Poetic Edda (as summarized in the provided material) states that the morning dew gathers in their horns and forms the rivers of the world. No aggressive, magical, or combat abilities are described in the provided excerpts; their noted function is cosmological and ecological within the world-tree.