You could try defining your terms and explaining exactly what you mean... The evolution of traits and the evolution of behaviour go hand-in-hand in a positive [question-begging] feedback loop.
The word instinct refers to innate, unlearned behaviour, as I'm sure you really do know...
Wiki:
Instinct or
innate behavior is the inherent inclination of a
living organism toward a particular
behavior.
Whichever instinct you may care to ignore, the instinct remains, and evolution has no accounting for it.
We are discussing here the origin of bats' wings and their ability to echolocate.
The origin of their wings is a non-starter, since the very first fossil bats already had them, and presumably knew how to use them.
There's that instinctive behaviour already in existence, and fully functional. Questions: where and how and why did it arise? And most critical of all, how did it enter the genome?
You are sufficiently intelligent to recognise that any gradual hypothesis is also a non-starter - because somewhere within the organism is ALREADY the ability to register the new behaviour and act on it.
Surely you can see that.
So X (can't fly) ..... n1, n2 ... steps......Y (can fly).
I don't know if you can see that n1, however incrementally small the difference from X, MUST have the new behaviour
superimposed on X.
But X also MUST have the ABILITY to RECEIVE that superimposed new behaviour. Otherwise, no matter how excellent the new behaviour may be, it is useless evolutionarily.
You can't put a wing, or a wing precursor on to something that is incapable of receiving it. Now where did that ability to receive it come from?
And that is the root of all your evolutionary difficulties, as I'm positive you can see.
Now to return to the question of echolocation.
We have seen that the bats' echolocation ability is not just excellent. It's so good that the US military is busy trying to copy it - and failing.
So here is a creature, however many millions of years old, in possession of a faculty which is far in advance of anything we can produce.
And, you insist, that ability just happened.
I don't know how you think, but it seems to be in a very curious fashion indeed.
You would be entirely unwilling to accept that a perfectly functioning aircraft could possibly have originated in random fashion, such as a typhoon blowing through a junkyard.
Yet here, we have a super-duper aircraft, in many ways far superior to any we have been able to produce, one of the most highly successful mammalian species of all time, and here are you attempting to avoid the blindingly obvious conclusion that it could not have appeared by chance processes.
You have nothing better to offer than casuistry - certainly you have no science to back up your conclusion. I offer you the facts of flight, echo-location and all the anatomical and physiological functions in the creature.
Facts, I say. No hypotheses.
And I demand an explanation of how they could have originated. You can only mumble about evolution having an explanation as follows:
even if evolutionary theory is quite unable to offer explanatory hypotheses for how bat wings, echolocation and particular patterns of behaviour arose (which it isn't)...
OK. So where's the explanation? I've never seen one, but would be willing to listen. But for heaven's sake, don't produce some stupid article which anybody can see says nothing of evidenced substance in answer to the question.
...Demonstrably you have not done this, except to credit God as an explanation.
Because I can't produce a good explanation of the facts (in your opinion), it doesn't follow that I have to swallow your bad one.
In fact, in this particular case, you haven't got one at all.
And that is my limited objective in these writings. There is no way to establish scientifically that God did it. It is, as you rightly think, an article of faith.
But as Sherlock Holmes said, when you have eliminated the impossible, whatever remains, however improbable,
must be the truth. I'm eliminating the impossible.
The evolutionary non-explanation is impossible. We therefore must fall back on the 'however improbable' (in your opinion) explanation.
I'm positive that you intuitively know that this is right. Why not just admit it and save us both a lot of trouble?