
Western Gull (Larus occidentalis)
Dear Readers, this has been a good week for news about animals, and I shall be sharing a few stories over the next few days. However, to kick off with, here’s a story that reaffirms what I always thought about gulls – they are a lot smarter than we think.
Back in 2018, researcher Scott Shaffer was working with Western Gulls on a rocky outcrop close to San Francisco. Western Gulls are very similar to our Herring Gulls, with, it appears, a similar eye for opportunity. The gulls were being fitted with GPS trackers, so that the scientist could monitor their feeding behaviour. Imagine his surprise when the data recorded that one particular female Western Gull had travelled at 60 miles per hour along a highway to a rubbish facility 80 miles away. Western Gulls can normally fly at about 20 miles per hour.
Furthermore, a few days later the same gull made the same trip again.
Shaffer’s theory about what happened is as follows. The gull was probably feeding on the food scraps contained in an 18 wheeler garbage truck, when she was inadvertently trapped beneath the netting that the workers throw over the back of the vehicle to stop the rubbish falling out. Off she went to gull heaven – a composting and recycling facility. She flew back home, and then, two days later, she voluntarily perched on another garbage truck and rode it all the way back to the composting facility.
Of course, there are still a lot of questions, because sadly we can’t ask the gull what she thought she was doing. However, my guess is that, having found the ‘pot of gold at the end of the rainbow’ when she originally rode a garbage truck by mistake, she was able to recognise the same kind of vehicle, and decided to see if this too would take her to a rich food source. Which it did.
I wonder if she’ll teach this behaviour to other gulls, and in particular to her children? It will be interesting to see if San Francisco garbage trucks become a kind of gull bus service. I, for one, can’t wait to see what comes next. And how I’d love to have been in the lab when the data came in, showing that there were superspeed gulls out there. I imagine there was a lot of head scratching.
You can read the full story here.






























