Forster Aptenodytes

 "crime boss character Oswald Chesterfield Cobblepot, aka "The Penguin", styles himself after an emperor penguin, a fact which is often referenced in stories, e.g., in his occasional alias  

"Forster Aptenodytes." 

"Male emperor penguins must withstand the extreme Antarctic winter cold for more than two months while protecting their eggs;

 eating nothing during this time, male emperors will lose around 12 kg (26 lb) while waiting for their eggs to hatch." 

"The penguins start courtship in March or April, when the temperature can be as low as −40 °C (−40 °F).  

A lone male gives an ecstatic display, in which it stands still and places its head on its chest before inhaling and giving a courtship call for 1–2 seconds; it then moves around the colony and repeats the call. 

 A male and female then stand face to face, with one extending its head and neck up and the other mirroring it; they both hold this posture for several minutes. 

 Once in pairs, couples waddle around the colony together, with the female usually following the male. Before copulation, one bird bows deeply to its mate, its bill pointed close to the ground, and its mate then does the same" 

 

https://en.wikipedia.org/wiki/Emperor_penguin 

"After laying, the mother's food reserves are exhausted. She carefully transfers the egg to the male and then returns to the sea for two months to feed. 

 The transfer of the egg can be awkward and difficult, especially for first-time parents, and many couples drop or crack the egg in the process. 

When this happens, the chick inside is quickly lost, as the egg cannot withstand the sub-freezing temperatures on the icy ground for more than one to two minutes. 

 When a couple loses an egg in this manner, their relationship is ended and both walk back to the sea. They will return to the colony next year to try mating again.  

After a successful transfer of the egg to the male penguin, the female departs for the sea and the male spends the dark, stormy winter incubating the egg against his brood patch, a patch of skin without feathers. 

 There he balances it on the tops of his feet, engulfing it with loose skin and feathers for around 65–75 days until hatching." 

"Hatching may take as long as two or three days to complete, as the shell of the egg is thick. 

Newly hatched chicks are semi-altricial, covered with only a thin layer of down and entirely dependent on their parents for food and warmth. 

 The chick usually hatches before the mother's return, and the father feeds it a curd-like substance composed of 59% protein and 28% lipid, which is secreted by a gland in his oesophagus.

 This ability to produce "crop milk" in birds is only found in pigeons, flamingos and male emperor penguins. 

 After the chick hatches, the father is able to secrete this crop milk for only 3 to 7 days;

 this will temporarily sustain the chick until the mother returns to the colony with food from fishing at sea to properly feed the chick. "