Showing posts with label St Ives.. Show all posts
Showing posts with label St Ives.. Show all posts

Sunday, 8 November 2009

Balearic Shearwaters off St Ives Island

This set of images of Balearic Shearwater were taken on Thursday 5th Nov at St Ives in the north westerly gale. In four hours, fifteen were counted - the pictures below show three different individuals which approached reasonably close enough to get the shot. All of them look in perfect condition and quite different to the moulting birds we saw in large numbers this summer. The pose below is a curious one and seems unique to shearwaters. I took a photo of a Sooty Shearwater in August which showed its head and neck in a raised profile, just like the Balearic below.
The protruding legs and dark tail band can be seen well in this shot - not an easy feature to pick out in the telescope in a swirling wind.
The reason for the different colour sea is the changing light conditions from overcast to bright sunshine.
All of the images have been cropped by 25 - 33% . EXIF detail is basically the highest aperture of F/7.1 to give the highest possible shutter speed. Most of the images here are 1/2000s. ISO is set to 800 ISO and exposure -0.3 EV.






Thursday, 5 November 2009

St Ives seawatch - Thursday 5th Nov

A strong north westerly forecast showed some promise and duly delivered some pleasing seabirds, all relatively close inshore today. One or two crackers but no fireworks, one might say today.
One of the highlights (above) was a single Pomarine Skua skimming low over the water. The Balearic Shearwater below was one of fifteen seen during the morning.

Common Scoter - several darker males and duller brown females passing the island.

A single first winter Common Tern was the only tern seen today.

The grey rump and fading dark secondary wing bar can be seen on the image below.
Thousands of Kittiwakes were streaming past the island. It was pleasing to see that 50% at least were juveniles, indicating a successful breeding season.



Totals from 7.30am to 11.30am were as follows:

1 Arctic Skua
10 Great Skua
1 Common Tern
1 Grey Phalarope
1 Little Auk
5 Great Northern Diver
1 Black-throated Diver
1000's Kittiwakes, 50% of them juveniles.
15 Balearic Shearwater
3 Manx Shearwater
2 Little Gull (1st years)
2 Mediterranean Gull