The ravens (tous korakas). Nowhere else in the N.T. The name includes the whole crow group of birds (rooks and jackdaws). Like the vultures they are scavengers. Mat 6:26 has simply “the birds” (ta peteina).
Storechamber (tameion). Not in Mat 6:26. Means secret chamber in Luk 12:3.
Of how much more (posōi māllon). Mat 6:26 has question, ouch māllon.