Are any of your Observations ones where the focus of the Observation seems to disappear into the background? If so, please share.
Here on the Peninsula we have a type of butterfly called Cracker Butterfly (Hamadryas). When they rest on the trunks of trees or the stone walls you almost cannot not see them. But when they fly, they sort of snap their wings in the air and it makes a distinctive sound.
The other one that is extremely hard to spot despite having a good size is Cuernavaca herbida, which I think either has lots of tiny areas of different green coloration or may have some quality to adjust for what leaf it is on, because I have never seen one that does not perfectly match the color of the leaf upon which it sets. (I only ever spot them because they have red eyes and look like they need tissues.)
I have one with a story. I was house-sitting for friends in Portugal and walked the dog in the forest. I saw a fairly large moth flying with bright red marks on the hindwings. Then it sat down on a tree trunk and just disappeared! I was running with the dog criss-cross through the forest and finally did manage to spot it.
It’s hilarious when animals do that.
I once saw a snowshoe hare that stood in the middle of the road, but I’m guessing it thought as long as it stayed still, no one could see it.
I was walking past my garden when I saw a little piece of leaf litter on a leaf and it didn’t look quite right. Got out my glasses and found it to be this 7 mm long spider. Beautiful in detail and spiny protection. My photo doesn’t do it justice but you can see a couple of eyes peeking out in wait for prey.
I think this is a ruffed grouse chick but it could’ve been a spruce grouse (in Alaska). I almost stepped on it! Unfortunately, it was injured. When I tried to pick it up, it managed to run off into the brush. If any identifiers would like to take a look, here’s the observation: https://www.inaturalist.org/observations/227678253