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Birdsong


amonra

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This morning on my walk into town I was heartened by a blackbird on top of a tree singing his song. He was about 100yds away and the song was quite loud so I asked myself how many watts of audio was he pumping out ? I haven't got a clue, but perhaps one of our readers has seen some article on the subject ? I was trying to visualise a small loudspeaker on top of the tree at that distance, estimate 5 watts ????? What do you lot think ?

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Blackhat

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I have a nesting box close to my rear winow, this year I have a pair of blue tits with 9 chicks. They sound great as I am doing my bit for inner city bird life. Pic here of dad bringing home evening meal.

Blue tit with food

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Forum Editor

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Birdsong is an incredibly incredibly complex subject. Birds sing to announce their presence to other birds - to attract mates, for instance - and to stake out a territory.

The volume and frequencies involved are a response to various factors like the amount of sound-absorbing vegetation in the habitat, or the ambient background noise. Birds in urban areas tend to sing louder in order to overcome low-frequency background noise, for instance. The call of a tiny wren can be heard 500 metres away on a quiet day.

Your male blackbird will stop singing at the end of July, and you won't hear him again until next February - they only sing during the breeding period. The reason is that singing uses an incredible amount of energy, and there's no point in wasting energy if you don't need to.

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Chegs ®™

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I'm unlucky as I live in a seaside town & have seagulls squawking loudly,crapping on the car/washing & every morning the joy of listening to what sounds like hobnail boots clattering across the roof.Whenever I hear this racket,I long for the various raptors I've seen over the nearby football fields to return as they keep these marauding seabirds away.

Saw a piece on The One Show lastnight,apparently there's a large trade in illegally caught wild songbirds so if you hear of any trading in songbirds & you doubt the authenticity of the bird,report it.

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