They don't know. The assumption in other similar studies is that the chick is trying to pick the food up and eat it. But a chickens beak is equivalent to our hands and they make all sorts of judgments about the object they peck at without eating it. So, the first peck could well be establishing what the object is. Even with adult chickens if you provide them with something they are unfamiliar with, or they find something, they work out how they will categorize it by pecking at it. So every new object is a learning process.Categorized as "exploratory"...Do they mean they were exploratory or they possibly were just misses?
My sister had a related problem with her two Silkies when they arrived. They had apparently been kept in a super clean broody coop without a mum as many breeders do. When they got to free range in her garden they ate all sorts of stuff they really shouldn't have eaten. One ate so much of a herb plant that she developed an impacted crop that was bad enough to require surgery. It's taken some time for them to realise that not everything is food and some food you can eat lots of and others not so much.
So, it seems at least some of adult pecking behaviour is learned from their mother. There is no logical reason to doubt this as all creatures are the same in this respect, but not many other creatures are 'born' in an incubator without parents.


but i had to bring the other eggs in. I snuck em out there after they hatched and those 3 hens ended up with like 2 incubation surrogates for around 7 chicks? I also gave them one who was like 2 wks older when they were like 4 wks old
they did great for the troubles they faced and if i can get em all to do so well? i could delegate 1/4 of my chicken job.
my hens survived but the eggs were all either smashed in the struggle or just gone. I moved em to a new coop but they didnt try it again. One poor hen was scared witless and she got mean with me over her eggs for the first time.
with what has happened my wife has mentioned it several times.


