This is a good opportunity for me to share this. Facebook tends to refresh the feed if I go idle too long or just to mess with me, making me lose the source entirely so I can't find it again.
I was making a gif of this Snowy trying to grab its dinner, but just getting a mouth full of leaves instead. The look of disappointment into the camera was great. But since I lost the source I didn't feature it.
Since it is related to today's photo and I don't want it to go to waste, here it is.
CloudConvert is the easiest I use. It is good if the MP4 is about 10 seconds or less. You can select codec.and frame rate, but that's about it. Any longer than that and I have to cut the frames to get it to around 10MB, there seems to be a cap on .World upload size.
EZgif has more features like start and stop point, resize, reduce file size, etc