![](https://www.uia.no/naturmuseum/english/science/zoologisk-bildekarusell/linneas-hoeyre-vinge_fullwidth.jpg)
In the field, we can use live individuals for research purposes. One example is photography and GPS tracking of birds. Wing patterns on owls can be used to identify individual birds, which gives us valuable information about the distribution of owls.
Photo
©Naturmuseum og Botanisk Hage, UIA/Roar Solheim