Reindeer gather around herder Anna Jemmett, from the Glenmore Reindeer Centre, to eat lichen from her hands in the Cairngorm Mountains near Aviemore, Scotland, on Dec. 28. The 150 strong Cairngorm Reindeer Herd is Britain's only herd of reindeer.

Reindeer herder Anna Jemmett from the Glenmore Reindeer Centre carries a 26 lbs bag of grain feed along a wooden pathway, a task carried out twice a day in winter, before feeding a herd of free ranging reindeer in the Cairngorm Mountains near Aviemore, Scotland, on Dec. 28.

A herd of reindeer walk together in the Cairngorm Mountains near Aviemore, Scotland, on Dec. 28.

Reindeer herder Anna Jemmett from the Glenmore Reindeer Centre, calls out to attract a herd of free ranging reindeer before feeding them, in the Cairngorm Mountains near Aviemore, Scotland, on Dec. 28.

Ducks walk past a herd of reindeer in the Cairngorm Mountains near Aviemore, Scotland, on Dec. 28.

Reindeers and their jockeys during the Reindeer Cup Championship Drives 2011 in Inari, Lapland, northern Finland, on March 19 There are 51 Reindeer Herding Cooperatives in Finland of which 20 took part in the 2011 Cup. When autumn arrives reindeers are separated. Some go to the slaughterhouse, other are kept for breeding and a few males are neutered and trained as work reindeers, mainly for pulling sledges and racing. Once that has been done, local breeder cooperatives like to find out who owns the fastest and strongest reindeer. With the onset of spring, the cooperatives hold meetings to review the events of the past year.

Two childen on a sled watch the Reindeer Cup Championship Drives.

Reindeers pull their jockeys during the Reindeer Cup Championship Drives 2011 in Inari, Lapland, northern Finland, March 19.

A man walks in specially made shoes at the Reindeer Cup Championship Drives.