Hi all! I'm brand new to this forum and am very passionate, very amateur "photorapher" mostly interested in wildlife. I have a Nikon D3000 and just got a Nikkor 55-300mm lens. I took it out yesterday to a spot I've been seeing a bobcat hunt for her dinner every day. I'm bad with distances but guesstimate I was about 80 feet or so away from my subject. At full, automatic zoom (300mm) I got OK shots but found that when I thought I was focused right at the cat's face, the end result would be a blurry cat and perfectly focused grass in the foreground. I don't know how to use the manual focus at all and was hoping I could get some good shots with the automatic setting while I learn more. I'm surprised with how different/difficult this lens is compared with my 18-55mm. If anyone has ANY tips regarding the issue I mentioned above, or any general tips for this camera model/this lens and wildlife photography, it would be really appreciated! Thank you thank you thank you!