Was checking the Radisson recording a little earlier than usual today and as I was doing so, in flew Ivy. Parked on the NW corner of the nestbox for about 30 seconds before taking off after whatever he was focussed on. Thursday he was in the box trying to nestscrape around the remains of his kids' meals (he actually moved a carcass over about 2 inches so he could scrape properly) but he wasn't calling so don't know if anyone else was around, with the lack of calling I would say not. Today however, he landed on the box edge and was laser-locked on something else the whole time and never even went into the box, just took off again SW.