
Urban birds are not only singing louder, they are changing their tune, say scientists.
A study carried out in San Francisco, USA found that urban sparrows were not only having to sing louder to be heard, but they were changing the pitch of their song in order to hit a different note to the general hum of the city.
See Cage & Aviary Birds April 18 to read the full story.

A captive population of arguably the world's most endangered bird, the Madagascar pochard (Aythya innotata), has produced 18 ducklings.
See Cage & Aviary Birds April 11 to read the full story.
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Conservationists in Colombia have renewed a campaign to encourage locals not to harvest the Quindio wax palm this Easter.
The Quindio wax palm (Ceroxylon quindiuense)is essential to the survival of the yellow-eared parrot (Ognorhynchus icterotis), which is officially listed as Endangered. But, traditionally, thousands of the trees have been used to celebrate Palm Sunday, in this predominantly Catholic country.
See Cage & Aviary Birds April 4 issue to read the full story.
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The desperate owner of a missing Bengal eagle owl (Bubo bengalensis) is pleading for locals in the Hebburn and Tyne area of the North East to help find her missing bird.
Stephanie McDowell, from Jutland Avenue, Hebburn, said she's been trying to put the word out via Facebook, but has had to suffer crank calls. Archie, her 12-year-old Bengal eagle owl, was hand-reared from a chick and so has no wild hunting instincts. He went missing on Thursday March 15.
See Cage & Aviary Birds March 28 issue to read the full story.
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The world's largest bird park, Weltvogelpark Zoo, celebrates its 50th birthday this year. And to mark the special event, many new attractions are to be unveiled.
See Cage & Aviary Birds March 21 issue to read the full story.
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The syrinx allows
some species to sing
up to 30 distinct notes
per second. Our little
wren can produce 740
different notes per
minute.
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