WHY TAP ON WIN­DOW?

Bird Watching (UK) - - Your View -

We have a pair of Dun­nocks, which we think have nested. Out­side our kitchen win­dow we have a clema­tis and the male Dun­nock has been land­ing on it and fly­ing around it, wings flap­ping and tail up. It then goes on to the lower part and starts to fly at the kitchen win­dow, tap­ping it with its beak. We have a flow­er­ing orchid on the sill and we thought this was what was at­tract­ing the Dun­nock. We moved it but the bird is still tap­ping. Is it pos­si­ble the Dun­nock sees a re­flec­tion and thinks it is an­other Dun­nock? Neale Row­ley

QDun­nocks can be very ag­gres­sive lit­tle birds, not least be­cause of their, how shall we say, ‘colour­ful’ sex lives. This one is al­most cer­tainly see­ing its re­flec­tion as a pos­si­ble ri­val for the af­fec­tions of its mate or mates, and is at­tack­ing in an at­tempt to drive off the ‘other Dun­nock’. This is quite com­mon be­hav­iour in Dun­nocks and cer­tain other species, such as Robins and wag­tails, which are also fiercely ter­ri­to­rial. One way to stop this be­hav­iour, en­abling the bird to pre­serve its en­ergy for more im­por­tant things, is to put some cling film or non-re­flec­tive cel­lo­phane on the win­dow in ques­tion.

A

Dun­nock Dun­nock Egyp­tian Goose

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