eeeeess
ddsssss
at the edge near the durian so that the other bird could rescue him
a letter is half a grid space btw (e - empty, s - snake, d - durian)
That is not the solution for 13 or 14
I guess then you’ll need to make a 15th level with this being the solution lol (also I can’t imagine any other configuration for 13 and 14)
I solved 14, but still have no idea for 13