Sequences not playing properly?

[Ylsid]

When called as a client side script, it's supposed to create a massive seagull in 0,0,0 and make it repeatedly flap. However, all it seems to do is a feeble small flap every time ResetSequence is called. Can someone help me please?
[lua]if ClientSeagull then
hook.Remove("Think","GullAnims")
ClientSeagull:Remove()
end
ClientSeagull=ents.Create("models/seagull.mdl", RENDERGROUP_OPAQUE)
ClientSeagull:SetPos(vector_origin)
ClientSeagull:SetModelScale(Vector(6,6,6))

ClientSeagull:Spawn()

local s=ClientSeagull:LookupSequence("fly")
ClientSeagull:ResetSequence(s)

local LastAnimated=CurTime()
hook.Add("Think","GullAnims",function()
local AnimLength=ClientSeagull:SequenceDuration()
if LastAnimated+AnimLength<CurTime() then

ClientSeagull:ResetSequence(s)

LastAnimated=CurTime()
end

end)
[/lua]