Great Tit in a branch

Great Tit on branches with lichen. There is a feeder nearby where I diversify their menu with sunflower seeds. When it gets cold and snows, they are very intense and many come to feed. As a photographer, I cannot miss the event and took a lot of pictures. I shoot with a Nikon D610 lens 180/2.8 Sigma macro. I used a tripod and a cable for remote shooting from a smartphone.
speed 1/800
f/5.6
ISO 640
from cover. They are not scared when they do not distinguish a person nearby. The distance from the bird I photographed them is very close, less than a meter.