I've never seen a chicken pay attention to flowers unless there was a fat bug or worm in the vicinity.
That and the fact that the record for a chicken living without its head is 18 months (and would have
been longer but it choked to death on a kernel of corn) and I would have to say No, the rooster doesn't
know that (or much of anything for that matter).
Fantasy maybe as to color but otherwise I am not so certain.
When my sons were in their teens, I was never sure what they would bring home. Imagine my surprise to a Peruvian Green Iguana. He grew to be about 15 years old and got quite large. They would put him in my flower garden to feed on his favorite menu! They get a brown orange when in the sun a lot.
15 years is a good run for one of those! Up here you have to take very good care of them, they have some specific
dietary and sunlight needs (and temperature) that are not met in this climate. Too fussy for my liking. He looks like a very healthy lizard.
He wasn't when my son brought him home. He was supposed to be about 3 years old, but was very small and scrawny. Took him to a Vet who decided he had a lot of nutritional deficiencies. The one who had him before had him in a small tank, UV light that should have been thrown away, and just some dry reptile food and a small bowl of water to drink. If you do not know how to take care of an animal, you should not keep it. I gave him B 12 shots monthly for a long time, oral vitamins with a variety of foods that are good for iguanas, and made sure he was in water for awhile each day for his skin. Also, he had the proper type of light and a temperature controlled hot rock to keep him healthy. I would never get another one, but with all that attention, he really developed a personality!