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...glance to and fro, like ___ Sprites: Wordsworth, 4 letters
Condor's pad (Var.), 4 letters
Eagle's nest (var.), 4 letters
Habitation at a high altitude, 4 letters
Hawk's home on high (Var.), 4 letters
High-altitude habitation, 4 letters
High-altitude habitation (Var.), 4 letters
Home on a high, high hill: var., 4 letters
Home on high (Var.), 4 letters
Lofty, as a mountain peak, 4 letters
Not solid, in a way, 4 letters
Toxophilite's skill, 4 letters
The lofty nest of a bird of prey (such as a hawk or eagle), 4 letters