Delayed egg laying

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Ed Svetich-WI
Posts: 798
Joined: Tue Jan 13, 2004 10:05 pm
Location: Brooks, Wi (McGinnis Lake)
Martin Colony History: 24 Super and Excluder Gourds on two gourd racks, all SREH. Full occupancy. My philosophy is to maximize fledge % with existing cavities rather than adding gourds to grow colony, thus providing opportunities for new colony expansion. Fledge over 100 nestlings yearly from 24 gourds. Band nestlings in cooperation with state university. 2019 Adendum: Reduced colony size to 12 gourds to focus on more intensive management regimen.

A year ago, there were 109 eggs in 21 nests. This year 75 eggs in the same number of nests. The average date for the first egg this year is 6 days later than in 2016 and by now most had completed their clutches last year. We are still days away from clutch completion this year. The SYs have been bringing in green leaves but have no eggs as of today.

I suspect that our cool, wet spring is the culprit. Ultimately, it may have no impact of total egg numbers, healthy nestlings and the ultimate goal of fledging those nestlings. The next 50 days or so will tell.

Have a great season,

Ed
BillieJR
Posts: 677
Joined: Tue Apr 11, 2017 11:39 am
Location: Monroe, WI

Very interesting. It'll be fun to see what you end up with. And when.
Billie from south central Wisconsin
ToyinPA
Posts: 2134
Joined: Mon Apr 10, 2006 6:07 pm
Location: PA/Avis
Martin Colony History: The 1972 St. Agnes flood wiped out all the Martins in my area. One day, in 1997-98, 5 or 6 Martins landed on the power wires crossing my back yard. I had no house for them. They kept coming back day after day. We got a martin house a few weeks later & they have been coming back every year since. I average 12-15 pair per year.

Same here Ed. Egg numbers are down from last year. Had 50 as of today's date & only have 32 laid this year so far. I've seen 7 eggs out of 32 tossed already. I expect more to be tossed. Too cold & wet this spring. I expect fewer chicks this year to fledge.

Toy in PA
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cransy
Posts: 145
Joined: Wed Nov 12, 2003 7:48 am
Location: watkins glen,ny

Here in NY I have over 40 pairs with only three eggs so far. Last nest check was 5/31. They are way behind prior years.
Annie G
Posts: 341
Joined: Thu Aug 02, 2007 3:09 pm
Location: Wisconsin/Portage

My first nest check of the season was yesterday. It reveled 44 eggs and several nests with green leaves. I had to use my pencil to carefully look below the leaves. The sy pairs are still nest building and arriving. Being naughty too. :roll:
Luckily I had my brother here to help me.
Keep trying and keep your chin up, its easier to see the martins coming!!
~Ray~Gingerich
Posts: 2122
Joined: Mon Jan 05, 2004 10:24 pm
Location: Delaware/Dover

Lagging behind last year at the same time frame here too. We had several weeks with rain or completely cloudy days right when egg laying should have started.They might need more sunny days to get egg production into full swing.
~Ray~ Gingerich
1999 1pair, 2006 2 pair, 2008 2 pair,
2009 23 pair, 2010 39 pair, 2011 67 pair,
2012 115 pair, 2013 160 pair,
2014 152 pair, 2015 174 pair, 2016 178 pair
2017 187 pair, 2018 200 pair, 2019 171pair
2020 233 pair
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