A year ago we
had our first voyage to Portland harbour breakwater to ring gull pulli. This year’s
visit was somewhat unsure earlier in the year, largely due to that sailing
competition that’s happening in a few weeks’ time. Despite all that we were
allowed back over this ‘summer’ which was sure to be an interesting visit due
to the recent awful weather. There were plenty of nests about but chicks were
few and far between. Herring Gulls seemed to have suffered quite badly with
several cold eggs in nests but Great black backed Gulls seemed to fair better.
However, last years visit was something of a learning curve in finding gull
pulli. So the fact that more pulli were found this year compared to last could
just a case of the team being better at finding them! They get into some rediculous cracks and caves in the rock armour.
This was one
of the Great black backed Gull pulli.
And they
bite!
Over 70 Great
black backs were ringed in total with a lot fewer Herring Gull. In fact, I believe
it could be less than 20 but I haven’t got all the data. A good number of both
species were colour ringed but I rather stupidly didn’t take a photo of the
rings we were using. The GBBG’s were white rings with Red codes. They start
with the letter P followed by one of these, :, then two numbers and a
letter. The Herring Gulls are black
rings with a three digit numerical white code which we also use on hand caught
fully grown Herring Gulls in Weymouth.
Huge thanks
for the Harbour Authority and Terry Coombs for arranging the visit. Finally
here’s a shot of the team before we got covered in gull poo!
No comments:
Post a Comment