In the standard form of the equation of a circle \((x - h)^2 + (y - k)^2 = r^2\), the \(k\) value corresponds to the \(y\)-coordinate of the center of the circle.
Given that the center of the circle is at \((-4, 5)\), the \(y\)-coordinate \(k\) is \(5\).
So, the answer is: \(k = 5\)