Red Admiral butterfly

Hi, this weekend 7/9/24, I have loads of red admiral butterflies,  just wondering why & why now? 10/14 at any one time, especially around a tree covered in ivy!

Plus I have seen a rapture, about the size of a large crow, has brown plumage with some greenish/ mottled colours, plus a white cap on its head but can't find a description with RSPB, any ideas?

Thanks

Sarah