One strategy for Angry Birds Facebook Surf and Turf level 45 is to send the first Blue bird through the rope holding the leftmost boulder. As it falls, at least the first tower should topple over, though more damage than that is ideal. Then launch the White bird to bomb the debris below, focusing on the bird ricocheting through the second rope. As this boulder falls, not much should remain in terms of pigs. Use the Blue bird to clean up whatever is necessary.
Our Angry Birds Facebook walkthroughs show you how to obtain 3 stars, most of the time without the aid of Power-Ups (we do make exceptions). If you have a different strategy feel free to leave a comment below; however, don't just post your score via the comments, as that's what the Facebook leaderboard is for.