Petrels Sentence Examples
In humming-birds and petrels the trachea is partly divided by a vertical, longitudinal, cartilaginous septum.
A similar rotation and dislocation occurs in various petrels, in correlation with the indigestible sepia-bills, &c., which these birds swallow in great quantities.
The sea-elephant and sea-leopard are characteristic. Penguins of various kinds are abundant; a teal (Querquedula Eatoni) peculiar to Kerguelen and the Crozets is also found in considerable numbers, and petrels, especially the giant petrel (Ossifraga gigantea), skuas, gulls, sheath-bills (Chionis minor), albatross, terns, cormorants and Cape pigeons frequent the island.
The sea-birds include a great variety of gulls, guillemots, cormorants, albatrosses (four species), fulmars and petrels, and in the Gulf of St Lawrence the gannet is very abundant.
They catch puffins, fulmar petrels, guillemots, razorbirds, Manx shearwaters and solan geese both for their oil and for food.Advertisement
Petrels are archaic oceanic forms, with great powers of flight, dispersed throughout all the seas and oceans of the world, and some species apparently never resort to land except for the purpose of nidification, though nearly all are liable at times to be driven ashore, and often very far inland, by gales of wind.'
But it is in the Southern Ocean that Petrels most abound, both as species and as individuals.
None of the Petrels are endowed with any brilliant colouring - sootyblack, grey of various tints (one of which is often called "blue"), and white being the only hues the plumage exhibits.
A walk to see the petrels around their burrows in the forest.
The last census also provided the first reliable estimates of the number of breeding petrels and shearwaters, using recently developed techniques.Advertisement
A midnight excursion to see and hear the storm petrels is an experience not to be missed.
The visitors included petrels, skuas, cormorants and terns.
Hundreds of shearwaters were dashing over the sea, as were a number of giant petrels.
I was hoping for my next family, diving petrels, from this ferry!
They also prey heavily on the eggs and chicks of penguins and small petrels.Advertisement
WilsonÃ¢s storm petrels and black-bellied storm petrels nest in the ruins of the whaling station in Whalers Bay.
We'll attempt a landing at Coronation Island, known for its extensive moss beds, nesting penguins and beautiful snow petrels.
The gadfly petrels pose a challenge to modern taxonomists.
More Bulwer's petrels, brown boobies and one streaked shearwater.
Sea birds include shearwaters, fulmars, petrels and royal and wandering albatross.Advertisement
Other birds to look out for are blue-eyed shags, kelp gulls, cape petrels, skuas, snowy sheathbills and antarctic terns.
Very important are also the investigations which show how, for instance in such fundamentally different groups as petrels and gulls, similar bionomic conditions have produced step by step a marvellously close convergence, not only in general appearance, but even in many details of structure.
The petrels, all of which are placed in the family Procellariidae, were formerly associated with the Laridae (see GuLL), but they are now placed as the sole members of the suborder Tubinares (the name denoting the characteristic tubular structure of their nostrils) and of the order Procellariiformes (see Bird).
Here there are Weddell and elephant seals, skuas, giant petrels, Antarctic terns and rookeries of chinstrap, gentoo and macaroni penguins.
More Bulwer 's petrels, brown boobies and one streaked shearwater.Advertisement
Storm petrels are perhaps the most remarkable as, despite their tiny size they take over 60 days to fledge !