How to identify trees

Look for fallen leaves or nuts and seeds on the ground as they will help you a lot. Where the trees are found might also be helpful for example, alder and willow trees near rivers or others in plantations. The bark of the tree may also be a good clue but it's not always easy.

This suggested webpage focuses on trees in winter https://www.discoverwildlife.com/how-to/identify-wildlife/how-to-identify-trees-in-winter/ 

This also is very helpful for winter http://paulkirtley.co.uk/2011/bark-buds-common-european-deciduous-trees-winter-identification/ 

One of the best places to get help is the Woodland Trust. They also offer a free App for your phone which uses different tree features to help you identify them.  https://www.woodlandtrust.org.uk/trees-woods-and-wildlife/british-trees/how-to-identify-trees/ 

A useful short list of common trees and features is here https://www.gardenersworld.com/how-to/grow-plants/how-to-identify-british-native-trees/