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You have to indicate the source of the photos.

you can do whatever you want in your own blog. this is mine. thank you for your coment.

Not citing the source of photos(images) is plagiarism. Here is a post on why this is bad, and here is how easy it is to find allowed photos.

Creative Commons: If you are posting content under a Creative Commons license, please attribute and link according to the specific license. If you are posting content under CC0 or Public Domain please consider noting that at the end of your post.

Not indicating that the content you copy/paste is not your original work could be seen as plagiarism.

If you are actually the original author, please do reply to let us know!

True, you can do what you want, and voters will respond to it as they like as well.

Just did a reverse search and found some http://www.keblog.org/real-farm-background.html

it's wonderful.... did you take these photos ??..... ^^

thank you!! I took 2, 4 and 5! others I dont know but are in my folders :D thank you for your coment!

thanks for reply.... voted for 2, 4, 5... ^^

Who took these photos?

obviously not you.