Table of Contents

The order procellariiformes; family diomedeidae - the albatrosses; the fulmars; the gadfly petrels - genera legensa and pterodroma; the blue petrel halobaena and the prions pachyptila; the genus bulweria; the genera calonectris and procellaria; the shearwater genus puffinus; family hydrobatidae - the storm petrels; family pelecanoididae - the diving petrels; breedings biology - introduction; the pre-egg stage; the petrel egg; incubation; the chick stage. Appendices: a checklist of the procellariiformes; protein bands in the electrophoresed blood plasma of procellariiformes.