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41
Mixed Diglossini, Apr. 15, 1965, VI

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of Conirostrum, are not greatly attracted to Diglossa spp. per se. They much prefer groups of "bush-warblers" or "bush-finches".

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IV. Possibly the behavior of the non-parasite Diglossini during the non-breeding season is essentially the same here and in the Sierra de Mérida. Possibly in both areas the species tend to spread into "unusual" environments in the non-breeding season – but also tend to concentrate at particularly favorable food sources. 

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V. My observations this morning – such as they are – would suggest that personal contacts between species are more frequent here than in Mérida, but that overt hostility between species is relatively (relative to opportunity) less frequent here than in Mérida. 

                                                 April16, 1965 
Mts. above Bogotá

Working same place as yesterday. Arrive 5:58 am. Already light. Sky overcast but no rain or fog. 

[[left margin]] 38 Humer [[/left margin]]
Humers and hummingbirds ✓✓✓✓✓✓✓✓✓✓  all over tree. At least as many birds as yesterday. Lots of chasing back and forth among Humers. R-Zaza patterns. No "Zaah"s or "Seeet"s. Lots of Humers chasing hummingbirds. 

[[left margin]] 40 Coer [[/left margin]]
At least 2 Blue Diglossa ✓✓ also in trees. Both apparently Coers Not together. Arrive different times. Once a "Coer" flies off when a Humer lands on branch 2 ft away 6:05. Again, just the same. 

[[left margin]] Laf [[/left margin]]
Relatively large black Diglossa, with particularly large and conspicuous humeral patches (Laf?) hops onto perch only 2-3 inches

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