Bluebird and HOSP

Welcome to the internet's gathering place for Purple Martin enthusiasts
Post Reply
Mitch Booth
Posts: 478
Joined: Tue Jun 03, 2008 6:23 am
Location: Akron, OH
Martin Colony History: 2012 - 0
2013 - 1 pair, 4 eggs, 2 fledged
2014 - 0
2015 - 1 pair, 5 died during week of rain
2016 - 0
2017 - 1 pair, 4 eggs, 4 fledged
2018 - 4 pair, 19 eggs, 19 fledged
2019 - 7 pair
2020 -

Is it possible for a bluebird and European house sparrow to nest or breed together? A friend of mine asked me to inspect his bluebird house. I found a HOSP egg and 4 nestlings that look like bluebirds but the nest looks like a mix between a tree swallow and HOSP. Feathers everywhere and the nestlings are just starting to get there feathers and they look awfully blue and I would swear they are bluebirds. I keep seeing a HOSP visit the nest but have yet to see a bluebird or TRES visit the nest?

Mitch
2020 -
2019 - 7 pair
2018 - 4 pair 19 eggs, 19 fledged
2017 - 1 pair 4 eggs, 4 fledged
2016 - 0 only visits
2015 - 1 pair 5 eggs, 5 hatched, 5 dead on days 6-7
2014 - 0 only visits
2013 - 1 pair 3 eggs, 2 hatched, 2 fledged
2012 - 0
flyin-lowe
Posts: 2860
Joined: Wed Mar 29, 2006 8:49 am
Location: Indiana/Henry Co.

I would check it again in a day or two. I wouldn't be surprised if it is a TS nest and the HOSP killed or injured the parents and has moved in and started laying eggs.
2020 47 of 52 cavities with nest (5/29)(HOSP Count 7)
2019- 31 Pair over 100 fledged
2018- 15 pair last count 49 fledged
2017 3 SY pair nested, 12 eggs total, fledged 10. 4 additional SY's stayed all summer but never paired/nested.
2016 1 pair fledged 4
2015 Visitors
2014 Visitors
2013 Moved 6 miles away, 1 pair fledged 2.
2012 30 pair fledged 100.
2011 12 pair (11 that nested), 43 fledged.
2010 5 pair, 21 eggs, 16 hatched, 14 fledged.
vman
Posts: 50
Joined: Fri Apr 14, 2017 10:42 pm
Location: wisconsin
Martin Colony History: have not had martins for last 20 yrs. trying to re establish a colony
2018 1 asy pair fledged 2

hosp will also use feathers in their nest, their babies will look blueish before they have feathers. Once your positive it's sparrows you should dispose of the whole family
Jim
Mitch Booth
Posts: 478
Joined: Tue Jun 03, 2008 6:23 am
Location: Akron, OH
Martin Colony History: 2012 - 0
2013 - 1 pair, 4 eggs, 2 fledged
2014 - 0
2015 - 1 pair, 5 died during week of rain
2016 - 0
2017 - 1 pair, 4 eggs, 4 fledged
2018 - 4 pair, 19 eggs, 19 fledged
2019 - 7 pair
2020 -

Yep they are definitely sparrows. I will dispose of the entire nest and place a trap in the bluebird house to eliminate either the female or male who ever visits next.

I was surprised how blue they looked prior to getting their feathers. It was definitely a sparrow egg and the nest certainly looked like a HOSP but I was surprised to see how blue the nestlings were!! I've watched closer now and it is definitely being visited by HOSP.

Thanks for the information.

Mitch
2020 -
2019 - 7 pair
2018 - 4 pair 19 eggs, 19 fledged
2017 - 1 pair 4 eggs, 4 fledged
2016 - 0 only visits
2015 - 1 pair 5 eggs, 5 hatched, 5 dead on days 6-7
2014 - 0 only visits
2013 - 1 pair 3 eggs, 2 hatched, 2 fledged
2012 - 0
Post Reply