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A. Strong inter-specific gregariousness throughout a whole region. As in the Western and Central Cordilleras of Columbia.

B. No inter-specific gregariousness. As in large parts of Central Ecuador and Central Peru.

But it may be convenient to recognize [[underlined]] two different types [[underlined]] of "intermediate" behavior. A. Moderate to weak interspecific gregariousness throughout a whole region. As in the Sierra de Merida and the Eastern Cordillera of Columbia. B. Strong inter-specific gregariousness confined to strictly [[underlined]] limited [[underlined]] areas. As on the road to Santo Domingo in Central Ecuador. An the area(s) visited today.

The fact that the interspecific gregariousness observed today was "stronger" than any observed in Central Ecuador may be correlated with the fact that the "humid temperate zone" is narrower here than in Central Ecuador. Or perhaps the birds of this area are "tending toward" the extreme gregariousness of their relatives in Bolivia???

(Possibly, some of the gregariousness of the birds observed today may be correlated with the fact that they are very near a major "geographical" frontier??? They are only a few miles from the Huallaga River valley. Thus, their position is not unlike that of the birds around Chachapoyas.)

NOTE: Even though a number of brightly colored tanagers were seen here today, they were still less common than in many other regions of the Andes. (This is all the more significant as the areas vistied today were not of very high altitude.)Thus, tod