Article writing Only for people from UK/US

We need a NATIVE UK/US/Australia/Canada writer to work with us on series of articles related to dogs. This first project is for 10 articles, minimum 500 words each. We will provide the topics for each article. These are not SEO oriented articles, these are mainly articles that are supposed to bring information and knowledge to the reader. There will be no keywords, or keyword density requirements. The quality will be judged on how interesting the articles are, how easy they are to read and understand. We expect unique, absolutely error free content (grammar, sentence structure, flow of the article MUST be of very high quality). We expect turn around time of no more than 48 hours for each 5 /five/ articles. We require a sample article on the topic "Blood donor programs for dogs" from everyone bidding on this project. This sample article can be anywhere between 300-500 words. We give same topic to every bidder as a way to compare the quality of your writing to others. Bids without a sample article ON THE GIVEN TOPIC will not be considered. We do not need samples of your previous work, or on-line portfolio. We need your writing sample on the topic we have provided above. NOTE: If English is not your first language, please do not bid. If you are from Asia or Africa, please do not bid. If you tend to stuff your articles with fluff just so you can reach the number of words requirement, please do not bid. Good luck.