Help with animation

Hello. Can anyone tell me how to make an animation using an image file and having that image file get bigger as the flash keeps playing? (E.g. as a bird flys closer to you, it looks bigger). Thanks.

Place the picture on the stage! Convert it t a MovieClip!
Now in frame 1 make it a little one and in frame let’s say 50 add a new keyframe and make the picture bigger!
now right-click anywhere between frame 1 and 50 and choose create motion tween!
voila!

or by actionscript you can do it like this:
just place it, convert it to a mocieclip and then select it and use these actions on it:

onClipEvent(enterFrame) [
_width += 5
_height += 5;
}

you can change the numbers! The bigger the number the faster it gets bigger!