Summer:
* Grasses: They graze on various grasses, including sedges and rushes.
* Herbs: They also eat different herbs and wildflowers.
* Lichens: In some areas, they may consume lichens, especially in the summer months when they're more accessible.
* Mushrooms: They occasionally eat mushrooms.
Winter:
* Lichens: This is their primary food source during winter. They use their powerful sense of smell to find lichens hidden under the snow.
* Twigs and bark: Reindeer will also eat twigs and bark, especially during harsh winters when lichen is scarce.
Other things to note:
* Salt licks: Reindeer need salt for their health and will often seek out natural salt licks.
* Minerals: They also benefit from consuming minerals from soil or rocks.
Important note: Reindeer kept in captivity, such as those in farms or zoos, are usually fed a mixture of hay, grain, and sometimes vegetables to ensure a balanced diet.