What are the runes that represent Odin's ravens?

Day is the Sun-dight dancing with stars,

Dazzling dream decked in night,

Doorway to Alf-home, Drawn on the brow,

Threshold of light, thunder-brand striking,

Yard of winged ones in the welkin's trendel

The Early-flyers, on errantry

Two sides of Minne mantled in black

At dawn swiftly down into dragon-ringed Midgarth,

Fly forth seeking the sooth of the world;

No deed or dighel from the deeming eyes

Of Hugin and Munin is hidden ever;

At dusk they make swiftly their Drighten to meet,

Settling safe on the shoulders of Óðinn,

Whispering at twilight tidings of day,

Their harsh croakings a cunning sweetness

And pleasing draught to One parched for knowledge.

On His brow a burning rune,

Awareness of All, Óðinn's mede,

Blazes forth, blinding as Sunna,

His eyes, one bright, one black as space

As day and night drink in all,

Both hard truth and hidden,

As He gazes out from Gladsheim's gates

With His dire birds as dark comes.

Day is the Sun-dight dancing with stars,

Dazzling dream decked in night,

Doorway to Alf-home, Drawn on the brow,

Threshold of light, thunder-brand striking,

Yard of winged ones in the welkin's trendel

The Early-flyers, on errantry

Two sides of Minne mantled in black

At dawn swiftly down into dragon-ringed Midgarth,

Fly forth seeking the sooth of the world;

No deed or dighel from the deeming eyes

Of Hugin and Munin is hidden ever;

At dusk they make swiftly their Drighten to meet,

Settling safe on the shoulders of Óðinn,

Whispering at twilight tidings of day,

Their harsh croakings a cunning sweetness

And pleasing draught to One parched for knowledge.

On His brow a burning rune,

Awareness of All, Óðinn's mede,

Blazes forth, blinding as Sunna,

His eyes, one bright, one black as space

As day and night drink in all,

Both hard truth and hidden,

As He gazes out from Gladsheim's gates

With His dire birds as dark comes.