public void addToEnd(BirdDataNode newNode)
{
if (next == null)
{
next = newNode;
}
else
{
next.addToEnd(newNode);
}
}
public void add(string bird)
{
var newNode = new BirdDataNode(bird);
if (head == null)
{
head = newNode;
}
else if (getCount(bird) != 0) // Usage of getCount() here
{
find(bird).population++;
}
else
{
head.addToEnd(newNode);
}
}