Even in a Pokemon AU, Julian was still Julian and still had a bit of a thing with regards to the calendar. So it really shouldn't surprise the Doctor that the two of them are walking through a field of tall grass right outside a forested area, searching for a Deerling. Summer had just started and Deerling's coat had just changed so naturally they were going to find one because that would make Julian happy and things that made Julian happy made the Doctor happy. It was as simple as that.

The Doctor's Sigilyph floats behind the older man as the two continue to traipse through the tall grass. "I dunno why we haven't found any yet," he admits, with a froooown. "There should be some around here. This is where they live, after all."