\(\text{Distance covered by Sweety} = \text{Perimeter of square park}\)
Perimeter of square = \(4 \times side\)
= \(4 \times 75 = 300\) \(m\)
Thus, distance covered by Sweety is \(300\) \(m\).
Now, \(\text{distance covered by Bulbul} = \text{Perimeter of rectangular park Perimeter of rectangular park}\)
= \(2 \times (length + breadth)\)
= \(2 \times (60 + 45)\)
= \(2 \times 105\)
= \(210\) \(m\)
Thus, Bulbul covers the distance of \(210\) \(m\) and Bulbul covers less distance.