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39

  Catch up with same flock a few minutes later. Sooty Thrushes seem to have left it. Tauager-types still around and still unidentifiable. Ruddy Flycatcher still there. In fact, there are two of them. And they definitely are following.
  Fog lifting temporarily 2.55 pm.
  [[margin, in green]]127[[/margin]] Then see that there is a small [[woodseeper?]] with flock.
  Fog back in 3:08. Immediately, there is an increase in bird sounds. [[underlined]]In neared vocalization in fog must help to keep birds together[[/underlined]].
  3:15. See single Sooty Thrush alone. Single tree edge pasture. And then another (?) is similar location. 
  Hear what sounds like Dubunia in distance 2530 m. 
  Back to crest of road 3:34. Going to work in same areas as yesterday afternoon. Unfortunately, there is not fog here now. Everything very quiet.
  Some more bird sounds 3:50, just [[underlined]]before[[/underlined]] fog starts to come in again. Then fog goes out again.
  Back to "Glane" area 4:05 pm. Clear, sunny (altho this spot is in the shade) and (naturally) windy.
  The contract between the bird life in this area yesterday and today is simply incredible. Absolutely conclusive proof of the effect of weather.
  It has just occurred to me that during foggy or rainy weather one sees more single birds as as more flocks. I.E. the birds not only join together but also "emerge" more frequently during bad weather. Is this because they have to look for more food???
  It also occurs to me that I saw many and relatively large flocks on April 30 and May 1, when the weather was not very bad. But this was, I think immediately after a period of bad weather. I.E. Bad weather produces an after effect. In neared activity in order to get more food to make up for a foo