It is just as well the Nest 1 chicks will be ringed next week because they are virtually invisible in the Yorkshire fog (Holcus lanatus) growing so well on the nest edge!
The chicks are walking about the nest and wing flapping occasionally, maybe more often than we can see.
At about 16.00 yesterday YA brought a fish to the nest and fortunately Mrs YA dragged it to the handy gap to feed the chicks. In the image below the morsel was en route to the chick facing Mrs YA when the youngster behind them intercepted it!
There is bold behaviour on Nest 2 also. Yesterday for no apparent reason a chick launched several pecks at Mrs 37; in one it grabbed her wing and pulled strongly. Mrs 37 moved to the other side of the nest after that one.
Nest 2 is an average size but it a bit cramped when it comes to wing exercising.
The flapping is still rather unco-ordinated and rarely more than 3 or 4 flaps but the chicks are looking more proficient each day.