The trainer is T Ellis, operating out of Rugby in Warwickshire, and this is a yard worth paying attention to. Twenty-four winners already on the board this season suggests a stable in decent form — that is not a number you reach by accident. When a trainer running at that kind of volume sends out a first-timer, it usually means they have seen enough at home to think the horse is ready. Debuts can be unpredictable, but a confident, in-form yard behind you is never a bad start.
Beyond that, there is simply nothing more to go on. Colibri Bleu is an unknown quantity, and honestly, that is part of the appeal — every career has to begin somewhere.