Reddit reviews Ornithology
We found 5 Reddit comments about Ornithology. Here are the top ones, ranked by their Reddit score.
Used Book in Good Condition
We found 5 Reddit comments about Ornithology. Here are the top ones, ranked by their Reddit score.
The yolk is not free to move inside the egg. Bird eggs are produced via sequential adding of layers, and a specialized pair of structures holds the yolk in place in the central layers. The unfertilized ovum leaves the ovary into a structure called the infundibulum (which looks like a funnel more or less) where it is fertilized. It then moves through a specialized section of the oviduct called the "magnum" where four layers of albumin (the "egg white") are added. The inside of the oviduct has a spiral of cellular ridges which spin the yolk and twist strands of the albumin into "chalazae" which act as essentially springs to keep the yolk position stabilized. The developing egg continues through other specialized sections of the oviduct where additional layers of albumin, some membranes, and the egg shell and pigments are added. Note there are several membranes within an egg to keep things in place. The yolk itself is contained in a membrane called the vitelline membrane which is what you break if you want to have over hard eggs as opposed to over easy eggs.
Source: PhD in ornithology, also I taught ornithology at a University for 4 years.
for further reading see: this website
the classic textbook on the subject, which covers this quite well
edit:typos
Allaboutbirds.org is good for taxonomy.
I don't know of any books besides (expensive) textbooks that would be inclusive. My suggestion would be to see what recent ornithology books your library has. I think if the book is fairly recent and understandable to you, then it would good.
If someone else has a better book suggestion, you could always do the interlibrary loan thing.
If you do want a textbook, I've seen this one used a fair amount.
I have used Ornithology by Frank B. Gill.
It looks like this: https://www.amazon.com/Ornithology-Frank-B-Gill/dp/0716749831
Gill's 3rd edition is what I used for ornithology subjects and it is great, very broad.
There's an out of print book called Population limitation in birds by Ian Newton which has loads of info from research up until the early 90s on mating systems, predator-prey relationships etc.
Check your library for Gill's Ornithology. It's pretty much the gold standard on the topic.