Bird wings but black

function fly()

for i,v in pairs(script:GetChildren()) do
	pcall(function() v.Value = "" end)
	game:GetService("Debris"):AddItem(v,.1)
end	

function weld(p0,p1,c0,c1,par)
	local w = Instance.new("Weld",p0 or par)
	w.Part0 = p0
	w.Part1 = p1
	w.C0 = c0 or CFrame.new()
	w.C1 = c1 or CFrame.new()
	return w
end

local motors = {}

function motor(p0,p1,c0,c1,des,vel,par)
	local w = Instance.new("Motor6D",p0 or par)
	w.Part0 = p0
	w.Part1 = p1
	w.C0 = c0 or CFrame.new()
	w.C1 = c1 or CFrame.new()
	w.MaxVelocity = tonumber(vel) or .05
	w.DesiredAngle = tonumber(des) or 0
	return w
end

function lerp(a,b,c)
    return a+(b-a)*c
end

function clerp(c1,c2,al)
	local com1 = {c1.X,c1.Y,c1.Z,c1:toEulerAnglesXYZ()}
	local com2 = {c2.X,c2.Y,c2.Z,c2:toEulerAnglesXYZ()}
	for i,v in pairs(com1) do
		com1[i] = lerp(v,com2[i],al)
	end
	return CFrame.new(com1[1],com1[2],com1[3]) * CFrame.Angles(select(4,unpack(com1)))