*This is my first tutorial so I don't know how it's going to turn out and I would love comments, good or bad, questions and queries. Also keep in mind that this is more of a guide than an instruction book. Feel free to change and alter the way you build your Shrikes, they are after all yours.*
One thing which make my Tyranid army so fun is the Shrikes. They can move as fast as anything else in the codex but hit like a ton of bricks when they get there. Boneswords, Lash Whips, Scything Talons, these all can wreak anyones day in close combat. However, they might as well be built of paper as if anything so much as sneezes their way they're toast. But if you use them right, which is very challenging, they are almost unstoppable. Until they meet a powerfist.
This tutorial will show you how to build Shrikes in a hopefully not too difficult fashion which doesn't require any brilliant talents in sculpting.
End Product:

This is the end product I managed to make. They all have dynamic poses which I like but are really awkward to transport. They all have 6 limbs (like all Tyranids) which some people don't do, they just add wings to make 8 limbs, but I thought that would look crowded and weird so just count the wings as Scything Talons. I used the rocks to weigh down the bases and also add dynamics to each Shrike as the lower torsos are all identical. I didn't want them all looking the same. Keep in mind that this is what we are aiming for.