The cats won't be the only thinking looking up at the sudden burst of birdsong. From where he's settled back on a chair behind the counter with his book, Lambert looks up with a frown, pushing his glasses up his nose again as he shuts his book again. The cats are circling and pacing -- the lazier ones are content to lounge and watch -- in an effort to pinpoint the source of the sound, fluffy overfed bodies still moving with the grace of the predator that still lives in their genetic code. The cafe's walls bounce the sound, amplifying it and confusing the cats, who stare up like willpower alone might be enough to make a bird appear out of thin air.

Lambert, however, doesn't have that particular problem, though he does have a brief struggle not to move too quickly to his feet. He picks up a tea towel along the way as he steps into the cafe proper, a cat on a couch aiming a lazy swipe that he effortlessly dodges. He looks up, and ... sure enough, there it is, perched not even on the walkway but one of the struts leading off it. Lambert scowls, hands on hips.

"Now what are you doing up there?" He glances at Tallisibeth, since she's the only other person in the room right now ... "Did you see how it got in?"