Lanius Senator in Northwestern Bulgaria

Yesterday a received a call from my father in Belogradchik. He told me that he saw a male LAnius Senator hunting near the road. I was very surprised because for nine years of ringing I had never seen that bird.
There is no chance Lanius Senator to be mistaken with Lanius Collurio as you can see below.

Woodchat Shrike(Lanius Senator)

Red-backed Shrike(Lanius Collurio)

As you can see that Lanius Senator isn't a typical bird for northwestern Bulgaria.

(Pictures from Google)