Black-tailed godwits, Leighton Moss

Friday, 22 December 2023

Black-headed gulls

The fifty-odd black-headed gulls blown in on the school playing field across the road this morning prompted me to follow up on the idea of whether or not there's been a crash in the numbers here, perhaps due to avian flu. I record the visits here onto BirdTrack very nearly every day so I've got a decent dataset to work with; I had a look at the weekly peak counts over the past few years.

Peak count per week 2023
Red line = 100

Peak count per week 2022
Red line = 100

Peak count per week 2021
Red line = 100

Looks like I was right: this has been a very lean Autumn.


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