More bout those blue eggs

So, I looked my into the reason why robins eggs are blue and it isn't really all that much about genetics but more about their pigment glands. And most birds have Pigment gland to help in coloration of the eggs. Now more into the specifics: there are three main types of pigments. One produces reds pinks and browns and yellows the other two green and blue shades. Putting them all in different ratios and proportions yields different shade eggs and marks. It's similar to the process of creating the offspring itself. A combination of sone genes and traits yeild different organisms! A few other cool rhings birds primarily on the ground lay brown eggs, birds that lay then in cavities like tree holes lay the typical white egg and nesting birds will lay green or bluish eggs.The forsake marks cab also help a mommybird identify her eggs, like our own little traits and charscteristics that distinguish us from others.

Next question: how is the ratio of pigments determined? Could it change if sso when?

Somewhat of answer

So a question I had in my previous post was could we genetically modify the robin to produce different color eggs, and could the pigment be used in other organisms as an advantage to other organisms. I'v been trying to think of answers to my own questions before I research it. And I think that the answer to the first part of the question would be yes. I think somewhere in the DNA sequence of a robin there must be a gene for producing the pigment that causes that color. If somehow scientists altered that portion of the DNA chain and were able to cause the gene to creat less of the pigment the eggs would probably turn out to be more of a white color rather than blue because of the lack of the pigment. Then I'm assuming because of he color change the eggs would be more susceptible to predators if the eggs are blue for camouflage reasons. And as for the second part I think maybe more aquatic animals would benefit from a color pigment that yields that color. It could also provide them with camouflage.
Another question: do other animals have this pignebt?
I hope to find out!

Robin's eggs!

So in a recent walk around the side of my house I noticed robins eggs in a nest within a butterfly bush. Three eggs lay there just when my mom was thinking about cutting it down. So I've been recording and taking pictures of them each day since i've seen hem and today is day three. So far I have seen the nest the three eggs and twice I've seen the mother laying on her eggs. I'm not exactly sure how long the eggs have been there but it sparked a few questions related to the birds and biotech that I hope to get answers to or I'f not just share my own opinions on them.
1.) why are their eggs blue- so far I've been reading that it is to help hide the eggs and comes from a pigment in the mothers blood... Leading to my next question
2.) could the birds be genetically modified to produce different color eggs and how would that effect the amount of predators that come across the egg
Could the pigment in the blood that is causing the color of the egg be injected into another organism to create a bluish color and if so would that cor stay with the organism or would it just be there like on the eggs until the birth of the organism
3.) what qualities if any from a robin could be beneficial in DNA recombination genetically modifying organisms or gene therapy even? What qualities do they lack that could enhance or better their lives?
Soon i'll be posting my videos and photos of the eggs on the sidebar