The photograph is the source that is considered to be nonprint. This is because a photograph requires no writing that needs to be reproduced. Therefore, when referencing a photograph, you would need to use a difference reference style than the one you use for print sources. However, it is still important to provide proper references of photographs used in a text.
Which word is need to complete this sentence? - We were lucky to see a loggerhead turtle at the zoo. My mother told me they are on the ___________ species list.