Take Heart!
From Christian Vegetarian Association (CVA)

Cows Talk to Their Calves

According to Science World Report, scientists have identified two distinct calls from mother cows when communicating with their calves: a low frequency call that they use when their calves are close to them and a louder, “much higher frequency” call that they use when they are separated from them.

How to Speak a Cow's Language: Scientists Eavesdrop on Cattle Conversations.

This complexity in their communication shows just how little we know about the amazing lives of God’s cows, to whom the beef and dairy industries consider commodities to be exploited for profit.