Wildlife round-up

The Big Garden Birdwatch results are now in. Overall, the average number of birds seen in each garden has declined by a fifth since 2004, and house sparrows have decreased by almost two thirds since 1979, and starlings by three quarters over the same period. Despite this, however, four species of finch, which spend the winter in the UK, were seen in increased numbers. Click here to find out who is perched at the top of the Big Garden Birdwatch table in 2008.

Cameras held by elephants' trunks have been used to provide an intimate view of tigers in the jungle, to be seen in a new BBC documentary (30 March at 8p on BBC1). Because the big cats are used to the presence of elephants, the tusked giants were able to get far closer to them than a human film crew ever could. Thanks to the "trunk-cams", the team was able to follow four newborn tiger cubs all the way through to adulthood. See video of the trunk-cam here.