Mating or fighting?

I was sitting quietly on Conwy quay last night, when I became aware of a scuffle. These two gulls fought for about 5 minutes, with one of them clamping its beak around the other and dragging it all over the Quay.

File information
Filename:	Beak_2_copy_CC.jpg
Album name:	Cabbyjohn / Animals & Wildlife
Camera:	Panasonic FZ150
Photo Location:	Conwy. North Wales.
Filesize:	341 KiB
Date added:	May 24, 2016
Dimensions:	1280 x 1012 pixels
Displayed:	17 times
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ISO:	100
Make:	Panasonic
Metering Mode:	Pattern
Model:	DMC-FZ150
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Y Resolution:	180 dots per ResolutionUnit
YCbCrPositioning:	Datum Point
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