There is plenty of land and water fowl in this isle - as hawks , eagles of two kinds ( the one grey and of a larger size , the other much less and black , but more destructive to young cattle ) , black cock , heath @-@ hen , plovers , pigeons , wild geese , ptarmigan , and cranes . Of this latter sort I have seen sixty on the shore in a flock together . The sea fowls are malls of all kinds - coulterneb , guillemot , sea cormorant , & c . The natives observe that the latter , if perfectly black , make no good broth , nor is its flesh worth eating ; but that a cormorant , which hathed any white feathers or down , make good broth , and the flesh of it is good food ; and the broth is usually drunk by nurses to increase their milk .