This has left old mega-franchises like Angry Birds with strong ongoing download performances, but rapidly shrinking share of direct game revenue.

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Angry Birds is still going strong.

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Falconers develop a strong relationship and spiritual bond with their birds, and commitment is required to breed, train, handle and fly the falcons.

UNESCO: Europe: New inscriptions of cultural elements on the Intangible Heritage Representative List | United Nations Educational, Scientific and Cultural Organization

Just one possibility remains: some racing-pigeon fanciers are claiming that strong signals from mobile-phone masts are making their birds dizzy and unable to find their way home.

ECONOMIST: Walkie-talkies

The casing is designed to be strong enough to withstand such explosions, which can be caused by problems ranging from technical malfunction to birds being sucked into the engine.

BBC: Investigators seek clues to crash