Penguin Watch Talk

Subject: APZ000454x

Subject APZ000454x Full subject data (JSON)

Comments

  • lskenny by lskenny

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

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  • AvastMH 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. 😃

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  • lskenny 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

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  • gardenmaeve 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...

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  • gardenmaeve by gardenmaeve moderator

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

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  • gardenmaeve 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

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  • lskenny 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...

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  • lskenny 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

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  • yshish 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

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  • yshish 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

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  • yshish 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

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  • yshish 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

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  • markehurd by markehurd

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

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