On our recent trip to Sydney and back I commented several times on the casual nature of the crows along the road. So many times we saw them eating road-kill, either on the road itself, or very close to the edge of the paved area. As we approached – generally driving at 100-110kph – the birds would casually wander off the carriageway and just a few steps out of harm’s way. Rarely did they fly off. Occasionally they might give a hop or two to avoid being hit; this usually meant they had left their escape just a second or two too long. Then after our vehicle had passed, they quickly resumed their feast.
I presume that they had learned over their lifetime that vehicles caused them no harm provided they moved out of the way in time. Being quite intelligent animals they probably learned this survival technique from others. It just looked quite comical to me to see them so casually wandering out of danger.
I should actually correct myself here: most of the birds we saw were actually Australian Ravens, not crows at all. This is the largest corvid found in Australia. Crows are found further north than where we were travelling. Nearer to home we often see the same behaviour exhibited by the local species, the Little Raven. This behaviour is quite common on the South Eastern Freeway from Adelaide to my home town of Murray Bridge.