-
distinguishable from adults.
Terns have a non-breeding plumage,
which usually involves a
white forehead and much-reduced
black cap.
Terns are long-lived birds...
-
forked than
other terns, and
wingtips are
black on the underside. In winter, the
black cap is
still present (unlike many
other terns), but with some white...
-
aggressive species such as
Arctic terns and black-headed
gulls to
avoid predation. Like all Thal****eus
terns, the
Sandwich tern feeds by plunge-diving for fish...
-
through the
tropical oceans. It has very
marine habits compared to most
terns;
sooty terns are
generally found inland only
after severe storms. The
Field Museum...
-
jointly recorded as "commic
terns".
Although similar in size, the two
terns differ in
structure and flight. The
common tern has a
larger head, thicker...
- mask remains.
Juvenile Forster's
terns are
similar to the
winter adult. The call is
similar to that of
common terns, but also some
harsher sounds suggestive...
- fact that this, the
largest marsh tern, show
similarities in
appearance to both the
white Sterna terns and to
black tern. The size,
black cap,
strong bill...
- the
animal kingdom. The
Arctic tern nests once
every one to
three years (depending on its
mating cycle).
Arctic terns are medium-sized birds. They have...
-
phylogenetic studies have
shown that the
white tern is more
closely related to the
noddies than it is to the
other terns. This
implies that "white noddy" would...
-
large tern is
closely related to the
royal and
lesser crested terns, but can be
distinguished by its size and bill colour. The
greater crested tern has...
