Tiger Swallowtail in Western Oregon

I am always thinking I should work harder at getting rid of the thickets of non-native Himalayan Blackberry on my forestland property. But on a day like today when the bees and butterflies are busy at the blossoms I am less eager to do so; not to mention the fruit we will be picking in a few weeks to make wild blackberry jam. This is one invasive plant that does have some "redeeming" qualities.