All material which appears on websites is subject to copyright. It is best to operate on the basis that there is no implied licence to copy. Many websites will have a section indicating what can and cannot be done with the material they display.
If the copying you seek is not covered in the copyright notice ask for permission by contacting the webmaster. It is acceptable to apply fair dealing i.e. downloading for personal use only. Any re-publication or multiple copying would not be fair dealing.
