Original: "Shrikes put their prey on spikes or broken twigs. That’s how they find it convenient to eat and store food."
Corrected: "Shrikes put their prey on thorns or broken twigs. That makes it easier for them to eat and store their food."
Why: "makes it easier" is simpler and clearer than "find it convenient." I changed "spikes" to "thorns" because shrikes usually use thorns or sharp twigs. I also added "their" before "food" to be clearer.