What is a blue-jay gonna do with spikes anyway?

My wife and I periodically play "vintage" video games together. So earlier this week we were playing Sonic 2 on the Sega Genesis. All of the sudden, out of the rock, pops what appears to me to be about 7 blue-jay's in a row. These blue-jays spring out in a straight line, then back back into the rock. Now, if you've played Sonic 2 recently, you'll be well aware of the very dirty nature of the game. There are parts that almost perfectly geared in such a way that you CANNOT get through it without getting hit. This blue-jay attack is one of those parts.

So I think to myself, "what the crap are blue jays flying out of rock for? Even for Sonic this is a stretch." As I begin to curse (in a completely non-cursing way) at the game, my wife chimes in that I hit the spikes.

So, thus begins my question. What the crap is a blue-jay gonna do with spikes anyway? Spear the berries before it eats them? So, muttering, I continue to play through this dirty level getting my can kicked repeatedly by the bespiked-blue-jay-trains. It soon becomes apparent to me, that given the proper number of spikes in a long enough train, bespiked-blue-jay-trains could easily dominate the world. Because of this, logically, I think we humans could do with having a few more spikes. The bespiked-blue-jay-trains may take, us, but at least we could take a few of the train with us. ... Of course, I guess we have knifes, which are kinda like spikes, but not in the over-powered bespiked-blue-jay-train fashion. It is the difference between Wolverine and a common mugger.

Regardless I eventually completed the level (with 7 rings, but at least I didn't die trying). However, in the end I realize that the bespiked-blue-jay-train was actually a robotic spiked snake.... which of course isn't near as cool as a fleet of bespiked-blue-jay-trains bent on world domination. So, I guess we humans won't need spike grafts to protect our selves.

........... For now.