英文關鍵字
atlantic
belongs
bills
bird
birds
black-tipped
boobies
bred
breed
breeds
britain
closely
coast
common
comprising
danger
dive
eat
eating
environment
european
family
fed
feed
fish
food
gannets
genus
great
heads
introduced
large
largest
local
long
mate
metres
natural
nature
nest
nestling
north
northern
ruk
safe
safety
sea
seabirds
species
subfamily
sulida
two
white
wings
wingspan
world
yellowish
young