Life History of the Broad-Billed Motmot, with Notes on the Rufous Motmot
LIFE HISTORY OF THE BROAD-BILLED MOTMOT, WITH NOTES ON THE RUFOUS MOTMOT ALEXAWDERF. SKUTCH N earlier papers (1945, 1947, 1964) 1 gave accounts of the habits of three I species of motmots that inhabit more or less open country, or cool woodland on high mountains. The present paper deals with two species of the wet lowland forest. The nests of these two motmots that we chiefly studied were in sight of each other on the “La Selva” nature preserve, which lies along the left bank of the Rio Puerto Viejo just above its confluence with the Rio Sarapiqui, a tributary of the Rio San Juan in the Caribbean lowlands of northern Costa Rica. They were watched during two visits to this locality, from April to June in 1967 and from March to early June in the following year. The heavy forest of this very rainy region, with its tall, epiphyte-burdened trees, its undergrowth dominated by low palms, and its exceptionally rich avifauna, has been well described by Slud (1960). BROAD-BILLEDMOTMOT (Electron platyrhynchum) One of the smaller members of its family, the Broad-billed Motmot is about 12 inches long. The foreparts of its short body, including the head, neck, and chest, are mainly cinnamon-rufous, with a large black patch on either side, covering the cheeks and auricular region, another black patch in the center of the foreneck, and greenish blue on the chin and upper throat. The posterior parts of the body, including the back and rump, breast and abdomen, are green, more olivaceous above, more bluish below.
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