TEST Breeding Groups Science 
10,000 Birds
MAY 19, 2015
Within species, or closely related groups of species, beaks vary by small amounts that result in important adaptive fine tuning, as we see in the Grand’s studies of the Galapagos Finches; Beak related behavior is at the cutting edge of survival for many bird species. Well, maybe a little better than that but not much. Here’s the thing.
10,000 Birds
FEBRUARY 18, 2014
The vast majority of the 10,000+ living species of birds are passerines, and the vast majority of those have a similar system of breeding: Mom and dad bird make a nest and share parental responsibilities roughly equally, if not identically. …because cooperative breeding facilitates defense against brood parasites.
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10,000 Birds
MAY 27, 2024
One website states that only 15% of the birds that hatch make it to become first year breeding adults, 6% make it to the second year, and 3% to the third year. Other species – such as starlings or t**s – stealing the nesting site of Eurasian Nuthatches is one of the major reasons for breeding failure.
10,000 Birds
MAY 19, 2011
Some of the first solid research pointing to a magnetic sense of some sort in birds was being produced at that time, and there were even people testing humans for a similar ability. If migration evolved many times in birds, then it would be worth asking if it evolved in birds more often than in other groups of vertebrates.
10,000 Birds
MARCH 14, 2011
They reach breeding maturity at four to seven years of age, produce only one chick per nesting season, and only one in three offspring survive to fledging age. Ohio has tracked two families of their state-endangered breeding sandhill cranes and found them to have wintered over in Tennessee in 2010. Lots to think about.
10,000 Birds
JUNE 22, 2023
The best female strategy seems to be to mate with as many of the males as possible, as this means more help in feeding the chicks by all the potential fathers (I guess the fathers do not have easy access to paternity tests). Being a management consultant, I am well-versed in the science and art of b *g. ” Full iteration!
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