A while ago I decided swapping a lens while out in a marsh / swamp was rarely a good idea. Especially a big long heavy one. And yes, it’s experience that taught me that. Nothing like bouncing and bending a Canon L series lens.
This just means my options are limited when shooting the small guys. A quick focus, change of the f stops and take a look to see what I may do.
On these not much to worry about. If he is in focus, pull the trigger.