Rand is called too quickly! How to fix it?

If I run this Bunny1 and Bunny2 will be equal. Because I call the funcion so quickly that srand() as no time to chage

File 1

using namespace std;

int main()
{

     bunny start1;
     bunny start2;



     system("Pause");

    return 0;
} 

File 3 - All The Action Take Place Here

#include "stdafx.h"
#include "bunny.h"

bunny::bunny()

{
    int Number;
    int n;
    string buffer;

    srand(GetTickCount()); // The see is here!! // It cant be here.

    newAge = 0; // Age

    newSex = static_cast<bool>(rand() % 2); // True = MALE // False = Female

    if ((rand() % 100 + 1) <= 2) {newRadioactive = true;} // 2 % chance of mutant
}