Gus (again) and his stablemate Netty. Their Person has just pulled up in her car outside the gate.
In fact, Netty is the brains in this outfit; I suspect she has chosen this position strategically so she can beetle around at the last minute and make the first leap.
How very delightful. Does the little one have a view from there, or does she (he? Netty is not particularly gender-revealing) simply trust Gus to convey the important information?