[TeMPOraL]

Would they build a submarine then? Or a rocket capable of reaching orbit?

More realistically: have they mastered fire? There are caloric efficiency benefits to eating warm/cooked food[0]. Have they mastered writing? There's compound interest in terms of civilization development sitting right there, in the ability to put thoughts into a form that outlives individuals without degrading.

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[0] - At least for humans; IANABiologist, but I'd guess this would be true for other animals too, including birds, and at the very least it would expand the range of foods they can consume.

[withinboredom]

It took us 1000s of years to do that. One might ask, why did we master fire in the first place? Maybe to cook? To stay warm and go north? Do crows need to cook or can they just eat what humans cook? Do they need to stay warm?