The Shipley Collection of Scientific Papers, Volume 316

aphides Asio autumn Barn Owl beetles beneficial bird BENEFICIAL TO AGRICULTURE bill black-headed gull blotched breast British Islands Buff-tip caterpillars chestnut chief food chiefly cockchafer colour crevices crimson Cuckoo dark brown Dendrocopus destroys destructive species diet Economic eggs number eggs vary enormous numbers facial disk feathers feeds female flanks food consists glossy grass Greater Spotted Woodpecker Green Woodpecker grey ground-colour handsome bird hole injurious insects insects Ireland irides Kestrel large numbers larvæ legs and feet Lesser Spotted Woodpecker little bird Long-eared Owl male mice migration moth mottled nape Nightjar noxious number from four numbers arrive olive-brown outer pair Partridge pests Pheasant Plover plumage pure white rook rufous rump Scotland sexes are similar Short-eared Owl slugs sometimes speckled Spotted Flycatcher starling Stone-Curlew streaked Swallow tail-coverts Tawny Owl throat throughout the British tipped Titmouse trees upper voles Warbler wing-coverts wings and tail winter wire-worms wood worms Wren yellow young