Subject: APZ000454x

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Comments

• by lskenny

  Very poor quality image.Could not readily distinguish if they were adult or chicks.

  Posted May 1, 2015 11:06 PM

• by AvastMH moderator

  It looks like they all have the adult white head marking. So most likely adults. It's always best to mark as 'adult' if unsure. 😃

  Posted May 1, 2015 11:08 PM

• by lskenny

  I don't think that's very scientific, to mark as adult when unsure.Near fledged chicks can have white head marking visible

  Posted May 1, 2015 11:32 PM

• by gardenmaeve moderator

  The scientist (who are very scientific 😄) have set the standard for us. By marking chicks only when sure, and as adults otherwise...

  Posted May 1, 2015 11:41 PM

• by gardenmaeve moderator

  ...they get the population data they need. You can understand those chicks, especially when nearing their first moult, will be adults,

  Posted May 1, 2015 11:43 PM

• by gardenmaeve moderator

  so counting them that way when we have to will still support future counts.
  Thanks so much for your eagerness for accuracy! FAQs here http://talk.penguinwatch.org/#/boards/BPZ0000007

  Posted May 1, 2015 11:45 PM

• by lskenny

  I understand the need to draw a line and have consistency.But an accurate (near)fledging chick count indicates colony success.To count...

  Posted May 2, 2015 11:54 AM

• by lskenny

  as adults could be misleading given the majority probably won't make it to breeding age.Anyway digressing from the objective of the exercise

  Posted May 2, 2015 11:55 AM

• by yshish moderator, translator

  Hi @lskenny The problem is that juveniles moult at the same time as adults and even the scientists have got problems tell them apart from

  Posted May 2, 2015 12:16 PM

• by yshish moderator, translator

  a photo! It simply isn't possible. We ask to mark juveniles as chicks as long as they miss the signs of maturity which are described in the

  Posted May 2, 2015 12:17 PM

• by yshish moderator, translator

  FAQs. We ask to mark them as adults when you can't tell their age since their count is more important for the scientists. When the penguin

  Posted May 2, 2015 12:18 PM

• by yshish moderator, translator

  isn't well visible - you can see only a piece of its body/is too distant/blurry.. it is the reason to mark them as adults.Hope it is clearer

  Posted May 2, 2015 12:19 PM

• by markehurd

  I'd have no problem marking all upright Ps as adults, but how many horizontal Ps are rocks (let alone probably juveniles)?

  Posted May 2, 2015 12:24 PM