Smallest of the smallest

I haven't seen him for years.

To be exactly, it was in 2020 May 14 smallest of the smallest

This small bird...the Gold crest, (Regulus regulus), (Goudhaanje), is the smallest

of the smallest under the birds.

He has a beautiful golden crest in his head...and he is flying/moving extremely fast.

I was so happy to see him again, because I was thinking he might have disappeared totally.