The Real Big Bird
Sesame Street's big yellow bird has nothing on the North African ostrich (Struthio camelus camelus), the largest bird in the world. Males can grow up to nine feet tall and weigh as much as 345 pounds.
Ostrich eggs also are the largest of any other bird, measuring six to eight inches long, four to six inches in diameter and weighing between two to four pounds. The largest ostrich egg on record weighed 5 lbs. 2 oz.
The extinct giant elephant bird (Aepyornis maximus) laid eggs that measured one foot long and could hold 2 1/4 gallons of liquid, the same as seven ostrich eggs, combined.