On 15th June 2017, in Tammisaari, Finland, in the transition zone between a forest and a clear-fell area (c. 60º00’N 23º30’E), I found a Great Tit Parus major brood in a rusty iron pipe among birch Betula, poplar Populus and spruce Picea saplings. The pipe was pointing upwards, leaning slightly towards the northeast, approximately 1.1 m high and 0.1 m in di

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