Albert Barnes Commentary Ezekiel 1:11

"And their faces and their wings were separate above; two [wings] of every one were joined one to another, and two covered their bodies." — Ezekiel 1:11 (ASV)

Thus ... - Rather, And their faces and their wings were separated above. All four formed a whole, yet the upper parts of each, the heads and the wings (though touching), rose distinct from one another. Two wings of each, as in the case of Isaiah’s Seraphim, were folded down over the body: and two were in their flight (Ezekiel 1:9) stretched upward (parted) so as to meet, each a wing of the neighboring living creature, just as the wings of the cherubim touched one another over the mercy-seat of the ark.