BR: v4

FEATHER TYPES: Each feather and its place on a bird’s body has to be coded for by the A-T-J-and K molecules of the bird’s DNA. 

FEATHER TYPES:  Symmetrical feathers are the same on one side as on the other side of the feather.  We are symmetrical except our heart is more on one side as compared with the other.  

The primaries are the most critical flight feathers.  They are on the ends of the wings and are usually the most symmetrical of all the bird’s feathers.

FEATHER TYPES:  The secondary feathers are on the back part of the wing and are usually somewhat symmetrical just like the tail feathers are.

FEATHER TYPES:  The smaller covert feathers are usually asymmetrical.

CHICKEN AND THE EGG:  Chickens do not have a bladder because their urine is not a fluid by itself. Their urine is mixed with a white paste, called urates, that you can see in the bird droppings on your windshield from time-to-time.  

CHICKEN AND THE EGG:   Chickens, as well as other birds, have a common opening for egg laying and for going to the bathroom. This opening is called the “ventana”.

CHICKEN AND THE EGG:   The intestine, ureters and oviduct–what the egg slides down–come together into a common chamber called the cloaca.

CHICKEN AND THE EGG:  The cloaca is a rather dirty place.  However, the egg is always clean and almost completely sterile when laid. 

CHICKEN AND THE EGG:  When laying an egg, the hen turns part of the cloaca–the intestine– and the last part of the duodenum–the egg tube– inside out like you can turn a glove inside out.

CHICKEN AND THE EGG:  By doing this, the egg can get outside the chicken without contacting the walls of the cloaca intestine which would get it  contaminated by stools and urine. The intestines–the cloaca–are also kept shut by the emerging egg and their dirty contents cannot leave when the hen strains to deliver the egg.