Bluebird Numbers (all nests) update

[Rich K]

Dave
1st brood 5 eggs. All unviable abandoned after 26 days
2nd 5 eggs 4 hatched and fledged
3rd 4 eggs all hatched and fledged
4th 4 eggs all hatched and fledged
Total fledged 12

[David in Stafford,VA]

Here are the numbers by brood: Updated with Rich K’s numbers

FIRST BROOD
Number of nests: 14 reported
Number of Eggs: 59 reported
Number Hatched: 49 reported
Number Fledged: 31– need to read additional posts

SECOND BROOD
Number of nests: 8 reported
3Number of Eggs: 38 reported
Number Hatched: 33 reported so far
Number Fledged: 33 reported so far

Third Brood
Number of nests: 7 reported
Number of Eggs: 23 reported so far
Number Hatched: 22 reported so far
Number Fledged: 22 reported so far

Fourth Brood
Number of nests: 1 reported
Number of Eggs: 4
Number Hatched: 4
Number Fledged: 4

For Totals so far, we have 30 nestings, 124 eggs laid, 108 hatched, and 90 new bluebirds in the air. We are missing reports from quite a few but as I mentioned elsewhere my internet has been down for more than a month and I am trying to catch up on posts to get additional data.

Thank you all who have sent this data. It does show that we are doing a pretty good job of keeping the Bluebird population growing..

David
Stafford, VA

[blue diamonds]

Thanks for the update. I enjoy seeing all the progress.

Judy – Michigan

[mark]

Only 9 fledges out of my 12 nestbox Trail (2 boxes are for TRES) gives one an idea of just how much the mid-February freeze in states to our south (where blues winter over) resulted in the deaths due to snowfall and extended freeze.

A neighbor (gave him nestbox and training) has an ideal yard location overlooking a park. He has consitently fledged 5-10 blues each year for the past ten years (Gilbertson PVC — plus mealworms). This year no blues no nest. He didn’t see even one bluebird all summer.

Many Bluebird Trails whether with 10 or 100 boxes experienced a decline in EABL fledges from previous years. Not uncommon for a 70% decline in fledge counts by mid-June.

Besides fewer bluebirds also a noticeable decline in robins (and Wrens). The deep freeze in Arkansas was one state that contributed to Minnesota’s decline in bluebird fledges … https://www.nwaonline.com/news/2021/mar/09/birds-took-hit-during-deep-freeze/

Will post final EABL fledge counts for 2021 by reporting members of both BRPM(MN) and BRAW(WI) — usually posted by February. This will give an idea of just how significant the decline due to mid-February deep freeze where Minnesota’s Blues winter-over.

Zip-a-dee doo-dah, zip-a-dee-ay ... www.youtube.com/watch?v=eoEojphw7kk

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