They're also responsible for one of the best emails I've ever received, when the college office sent out a plea for sightings of Professor Biscuit while conveniently forgetting to mention that he was a cat...(I won't comment on how often a similar email might have gone out about human Professors...)

Okay. Thanks, Liam.

Twice at the same location it’s identified firecrest. But both times based on these contact calls, not on song (which I can now identify: rolling upwards in frequency). But I’ve always been too far to be definite by eye.

I was going to email the sound recording to you to ask your opinion when it happened. But it wasnt very clear.

Yes, the song is great. On these occasions, it was there ‘chatter’. I listened back to it and it seemed indistinguishable from what I was hearing from the goldcrests. But there’s a reason why I rely on the app.

A couple of times it says it’s heard a firecrest in the same location. Second time I was close enough to clearly see goldcrests. Which is life-affirming but not life-changing.

With a suitably hard-hitting backstory, this would be Pulitzer Prize-winning photojournalism.

This, too, is compositionally perfect.

Surely you of all people realise I'm fond of gaudy plumage.