strutting before the female. "Parent Blue-footed Boobies suppress siblicidal behavior of offspring". "Bigamy in the Blue-footed Booby the Bhagavad - Gita and the Brown Booby?". London, United Kingdom: Christopher Helm. This Tolerance Hypothesis suggests that the elder chicks will reduce food intake moderately, just enough so that the younger sibling does not starve. The male begins by showing his feet, strutting in front of the female. Molecular Phylogenetics and Evolution. "The function of hatching asynchrony in the Blue-footed Booby".
The male and female share parental responsibilities. Food problems may be the cause of an observed failure of the birds to even try to breed. Their ritual displays are also a form of communication. Thus, the feet are rapid and honest indicators of a booby's current level of nourishment.
Breeding may occur from two to three years old (2). A b "Blue-Footed Booby". Retrieved 26 November 2012. 12 Its eyes are placed on either side of its bill and oriented towards the front, enabling excellent binocular vision. The benefit of limited dispersal is that by staying close to their parents' nesting sites, the boobies are more likely to have a high-quality nest. A b Velando, Alberto; Carlos Alonso-Alvarez (2003). After the first egg is laid, it is immediately incubated, which results in a difference in chick hatching times.