In a blender or food processor take the flour and salt . Cut the cold butter into 1/2 inch cubes and add to the blender . Pulse a few times till the mix resembles breadcrumbs . Dump the mix into a mixing bowl and add the freshly grated cheese.Mix using a spatula. Sprinkle a little of the ice cold water over the mix and gently mix using the spatula . The mix should start sticking together. Sprinkle just enough water to bring all the flour together. Form into a ball, flatten to a thick disc, cover with a plastic wrap and chill for 30 minutes.
Preheat the oven to 400°F (200°C).
Remove the pastry dough from the fridge and leave on the counter for 5 to 10 minutes. Cut small triangles from the carrot for the noses. Flour a rolling board generously and roll the dough out into a disc about 1/4" thick. Cut circles out from the rolled out pastry dough. Pinch 2 ears about 1" apart on the circles. Place the discs on the cookie sheet. Arrange black olives for the eyes, carrot for the nose and sprinkle the sesame seeds for the tiny feathers .
Transfer to the oven and bake for 15 to 20 minutes until the pastry looks golden and cheese bits begin to brown. Remove cool in pan for a couple minutes . Transfer to a cooling rack .
For detailed instructions go to https://oventales.com/cheesy-owl-bites/ .