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Tony Leukering

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Posts posted by Tony Leukering

  1. And note that the first part of the English name of Spizella pallida is a compound adjective, thus is hyphenated, with the letter immediately following the hyphen being in lower case. In case like "Great Black-backed Gull," both "Great" and "Black-backed" are modifying "Gull" independently, whereas, "Black" and "backed" are not.

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  2. 21 minutes ago, akiley said:

    Thanks for that catch. There are only two "age classes" so there's no real need for immature when talking about Red-tails, right? Just juvenile and adult. Is it the same with accipiters?

    Actually, "immature" is still a valid age for both buteos and accipiters, but only during the transition between juvenile and adult, thus with a mix of feather generations and pattern.

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  3. On 10/18/2019 at 7:59 AM, RobinHood said:

    Or is it a juvenile Chipping Sparrow (my original ID), which explains the light bill colour and strong moustache stripe?

    Juvenile Chippings have entirely streaked heads. Immature Chipping Sparrows can have head patterns like this, but the wing pattern suggests to me that it is an adult.

  4. On 10/20/2019 at 4:25 PM, The Bird Nuts said:


    Lincoln's also have buffy malar stripes, thinner, cleaner streaks on a grayer back, and slightly thinner bills.

    Beware of "buffy malar stripes."




    Juvenile Songs usually/often have buff malar stripes and that color can be present in immature Songs. The thin, well-defined streaks on a buff background is a more-reliable feature.

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