the tree appears to be an oak covered in ivy but it appears that the nest has some conifer twigs in its construction.
Just out of interest to satisfy my inquiring mind, I wonder the twigs were selected randomly, or maybe perhaps to help keep the nest disinfected and to cut down on the numbers of flies and possible diseases ?
Not sure about the choice of nest materials, chippy. I know the goshawks seem to top-up their nests with conifer twigs and branches. BTW, the nest has 2 chicks, according to the chat room.