Wednesday 18 April 2018

Tit knocker

Tit and knocker, and more commonly their plural forms, are often used synonymously in slang and certain types of humour but in this case the tit and knocker is a Great Tit that acts like and old fashioned knocker-up by tapping on the bedroom window every morning. If you are not familiar with the term 'knocker-up' it was a profession in Britain and Ireland that developed during the industrial revolution when alarm clocks were relatively expensive and not very reliable. The knocker-upper would go around and wake clients up, often by tapping on their bedroom window with a long stick, so they wouldn't be late for work and it was common job in the industrial towns of northern England (link here).

Our knocker-upper has been coming to the bedroom window for about a week now and the tapping usually starts about 6:30am and continues periodically throughout the morning and possibly longer. It is probably attacking its reflection but it is not a male as might be expected, no, our knocker-upper is a female Great Tit and can be sexed by the narrow and broken black stripe on the underparts.

This bird isn't coming across it reflection and then attacking it on each occasion as it usually appears from a direction that wouldn't allow it to see its reflection first. I suspect it has developed this behaviour from an initial chance direct encounter with its reflection and all of the return visits are to check for an intruder but when it gets level with the window it obviously sees its reflection again and responds as if an intruder has returned. This behaviour is very similar to the Dunnock that displayed to its reflection in the car wing mirrors last year. It returned to the mirrors in anticipation of seeing another Dunnock and not because its reflection suddenly came into view (link here) and I confirmed that when I covered the mirrors in bags and it still came back looking for its reflection. I think the female Great Tit is doing something very similar and is flying up to the window in anticipation of seeing what it thinks is another Great Tit rather than responding to something it has just seen.












Now you may be wondering why I am posting about this Great Tit rather than any ringing I have been doing at Billinge. Well, the simple answer is that it has been extremely slow going at Billinge over the last ten days with only a very slow increase in the number of summer visitors present and virtually nothing in the way of visible migration. Hopefully that will change now that some warmer weather with a more favourable wind direction has finally arrived and with a bit of luck I could have a visit worth posting about in the next few days.

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