Multi-lane highways are not wildlife viewing areas. Using them as such puts the animals, yourself, and other road users at significant risk.
The following article is a study of tailgating from a 26-second video of Highway 91 submitted by a North Cowichan resident who visits Richmond often to get treatment for the brain injury he suffered after being rear-ended.
If you go by the Two-Second Rule, 79% of drivers were tailgating. And 26% were recklessly tailgating with less than one second separation. In this video, one driver is only 1.5 car lengths behind.