作者名称 国旗国籍

David B. vip

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2020.01.04 12:27

Good morning! Today is Saturday, January 4th, 2020. I am up early

to do the last Christmas Bird Count of the season with my family. Pennsylvania, USA
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Comments

  • Silence 2020.01.04 12:35

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    😊
  • Joyce 2020.01.04 12:37

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    Just wonder what's the meaning of "Christmas Bird count"?
  • Wilson 2020.01.04 12:42

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    awesome site
  • Marielena 2020.01.04 12:43

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    Buenos días . Que la pasen bien.. 🌄
  • David B. 2020.01.04 12:58

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    @Joyce They are events done around the country this time of year. Teams cover specific areas and count how many of each species of bird they see.
  • May 2020.01.04 13:03

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    @David B. Is it a competition?
  • David B. 2020.01.04 13:03

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    @May No it is a citizen science project that has been collecting data for over 120 years
  • Ivan 2020.01.04 13:06

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    I don't understand why you get up so early to watch birds?You are a biologist.
  • May 2020.01.04 13:12

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    @David B. Ah! I see. Thank you for sharing the information. I didn't know about this before.
  • Joyce 2020.01.04 13:17

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    It's pretty cool. A science research which conducted by every citizens~ And it's very meaningful, scientists cat review previous data to observe the species and climate change~
  • Percy 2020.01.04 13:41

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    I'm a little curious about this activity. Birds fly away when they feel frightened. How do you calculate their quantity accurately?😁
  • David B. 2020.01.04 13:50

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    @Percy Just count how many you see and hear. The important thing is the year to year comparison
  • Percy 2020.01.04 14:14

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    @David B. If you see these birds in area A, when you count them, one or two of them fly away. However, Two birds have flown to area B which you have counted. And then the people in area B have also see them and register the two birds in their reports. Aren't they four birds? In fact, only two birds should be registered, not four birds.😂Right?

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