1) Adult goslings 2) Airborne honkers 3) Animals in a skein 4) Anser and Branta 5) Anserine creatures 6) Avian honkers 7) Back, say, to see off birds 8) Barnyard fowls 9) Barnyard gaggle 10) Big honkers 11) Big V 12) Birds flying in a V formation 13) Birds in a gaggle 14) Birds in gaggles 15) Birds that cronk Found on https://www.crosswordclues.com/clue/geese