JouRN. Linn. Soc, Zool. Vol. XXXV. Fl. 14. 
Fig. 5. — Louisiana Heron (Hijdmnussa tricolor). Twig-bringinff ceremony 
after nest-relief. The relieved bird ia presenting a twig to the bird on 
the nest. Note raising of crest, aigrettes, and neck-feathers, and 
spreading of wings. (Photo by J. S. H.) 
Pig. 6. — Nest-relief ceremony of Little White Egret (Egretta candidissima). 
The bird on the right is about to step off the nest. Note erection of 
crests and aigrettes, and spreading of wings. (Photo by J. S. H.) 
