Wildlife lenses for less than $500 that have image stabilization, have a generic focus motor, have a 100mm or longer focal length and have a f/4 or faster aperture

"I use the lens for everyday use. It has a nice range and a good price point for the quality. It is easily interchangeable and well built." bhphotovideo.com

Great zoom range 11.1x

	Image stabilization	Canon IS			Zoom range	11.1x
	Max focal length	200 mm			Diameter	79 mm
	Aperture	f/3.5			Min focal length	18 mm
	Focus motor	Generic motor			Length	102 mm

"I'm very impressed with the quality of the photos with this lens. I couldn't find anything wrong with any photos at any range. Durable construction, not too long as to make the camera unbalanced. Nice lens!!!" bhphotovideo.com

	Image stabilization	Panasonic MEGA O.I.S.			Zoom range	4.4x
	Max focal length	200 mm			Diameter	70 mm
	Aperture	f/4			Min focal length	45 mm
	Focus motor	Generic motor			Length	100 mm

"It has good build quality. The OS feature definitely works, and gives you a couple of stops at least. I'm satisfied with the sharpness and colors of the pictures I have taken." bhphotovideo.com

	Image stabilization	Sigma OS			Zoom range	4.3x
	Max focal length	300 mm			Diameter	77 mm
	Aperture	f/4			Min focal length	70 mm
	Focus motor	Generic motor			Length	127 mm