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Post by graeme45 on Jan 23, 2021 10:17:06 GMT -8
When do the thousands of Cackling Geese usually return to the Sardis Park area?
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Post by Ben on Jan 28, 2021 18:09:40 GMT -8
Habit?
It seems like a fairly safe place for a goose. They just have to watch for the odd eagle.
Water is probably a factor. And nearby fields for grazing are nice.
Also the presence of other waterfowl probably helps.
Those would be my guesses.
This morning I only saw about 130 though...
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Post by Ben on Jan 29, 2021 19:50:23 GMT -8
Habit? It seems like a fairly safe place for a goose. They just have to watch for the odd eagle. Water is probably a factor. And nearby fields for grazing are nice. Also the presence of other waterfowl probably helps. Those would be my guesses. This morning I only saw about 130 though... Oops! Misread your question! Lemme check eBird! |
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Post by Ben on Jan 29, 2021 19:56:05 GMT -8
As per the illustrated checklist, it's around the 2nd week of September. ebird.org/hotspot/L492499/media?yr=all&m=They leave the middle of May. To see when the large flocks are around, is a bit harder as you cannot filter the data by count numbers  Downloading the data might work, but I think you have to apply to do that. Maybe someone else knows off the top of their heads / via notes etc. |
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Post by Gord on Jan 29, 2021 22:21:27 GMT -8
To me the big numbers are mid to later October? How long they stick depends on the weather. A mild winter means many will hang around. If it gets cold and it freezes up for more than a couple days they will head further south to find open fields and water.
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Post by graeme45 on Jan 30, 2021 13:10:18 GMT -8
So that phenomena is a once-per-year event? They don't swing back around in the spring on the way back?
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Post by Gord on Feb 5, 2021 22:02:06 GMT -8
So that phenomena is a once-per-year event? They don't swing back around in the spring on the way back? Graeme, sorry I missed the question. On the years they leave the Fraser Valley in the winter they don't seem to pop by again on the way back north. Or, we're just missing them if their passing by is very quick. I suspect that they stage and head north from wherever they end up waiting out the winter rather than come by our way again. Probably they follow the coast up? I don't think there's as many Cacklers around as there were earlier. Still more than during a colder winter. All the Snow Geese in Sumas Prairie supports the idea conditions have been good to winter in our area. |
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Post by Ben on Feb 20, 2021 19:23:22 GMT -8
Based on all the non-X eBird observations of Cackling Geese at Sardis Park, they can arrive in numbers >2,000 in week 39 (end of Sept, beginning on Oct) and the numbers go down by week 46 (middle of Nov) I saw around 1,500 there today (week 7) Here's a chart   |
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Post by Jon on Feb 11, 2022 12:34:39 GMT -8
To bring back an old topic, I stumbled upon the "Line Graphs" feature on the eBird Bar Charts page. It's far easier to see the data for when abundance of a bird increases & decreases. Here's the link for Cackling Goose at Sardis Park: ebird.org/barchart?r=L492499&bmo=1&emo=12&byr=1900&eyr=2022&spp=cacgoo1Just click the "Abundance" or "Average Count" (or High Count) tab to see a similar chart to the above scatter plot. |
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