Search found 794 matches

by Ed Svetich-WI
Fri Jul 10, 2020 3:16 pm
Forum: Purple Martin Forum
Topic: how many broods?
Replies: 3
Views: 1185

Re: how many broods?

Jeff, Too late this year for nesting but you can still attract some as northern martins and this years' young begin exploring and heading south in the next 6 to 8 weeks. Over the next several weeks or months, I suggest searching thru the contents of this Forum as well as the information in the banne...
by Ed Svetich-WI
Wed Jul 08, 2020 10:51 am
Forum: Purple Martin Forum
Topic: Advice for 2021 improvements?
Replies: 4
Views: 1525

Re: Advice for 2021 improvements?

I concur with the previous advice. A housing upgrade is needed. Check out the many options available on the PMCA shop. Individual gourds or multifamily housing of quality will be less expensive in the long run. Explore your area for existing martin colonies to see what appeals to you. Keep in mind w...
by Ed Svetich-WI
Tue Jul 07, 2020 8:15 am
Forum: Purple Martin Forum
Topic: Martinwatch nest data sheet, fledged?
Replies: 9
Views: 2671

Re: Martinwatch nest data sheet, fledged?

Dave, Another good question. I guess I just used an "F" to indicate fledged without really thinking about it. The list on the bottom of the sheet only gives an"X" to indicate an empty cavity. I know my yearly data has been accepted as I get my yearly magnet in return.Maybe the PMCA will respond. I d...
by Ed Svetich-WI
Mon Jul 06, 2020 8:01 am
Forum: Purple Martin Forum
Topic: Bad eggs?
Replies: 9
Views: 2389

Re: Bad eggs?

At times, some females will lay eggs in nests other than their own. Egg dumping has been observed in over 200 species. Ducks are notorious for this, with some nests containing 30 or more eggs. I just had a nest with 10 viable eggs this year. Two eggs appeared on the same day. Obviously, one hen did ...
by Ed Svetich-WI
Sun Jul 05, 2020 1:32 pm
Forum: Purple Martin Forum
Topic: Martinwatch nest data sheet, fledged?
Replies: 9
Views: 2671

Re: Martinwatch nest data sheet, fledged?

Good question for a couple reasons. First is that it is required to verify fledgling for each nest by marking fledge (F) if your data is to be counted when you submit the Martinwatch data. Second is not to get too hung up on individual fledge dates as nestlings often fledge over several days. I make...
by Ed Svetich-WI
Sun Jul 05, 2020 1:32 pm
Forum: Purple Martin Forum
Topic: Martinwatch nest data sheet, fledged?
Replies: 9
Views: 2671

Re: Martinwatch nest data sheet, fledged?

Good question for a couple reasons. First is that it is required to verify fledgling for each nest by marking fledge (F) if your data is to be counted when you submit the Martinwatch data. Second is not to get too hung up on individual fledge dates as nestlings often fledge over several days. I make...
by Ed Svetich-WI
Sun Jul 05, 2020 9:03 am
Forum: Purple Martin Forum
Topic: Taking gourds down?
Replies: 4
Views: 1604

Re: Taking gourds down?

Leave them up. I bet there are martins checking them out. You cannot be there every daylight hour. If you have not prenested them, do so. It looks like they have been used previously. Ask the active colony when they lower their gourds/ house and follow their guidance.

Good luck in the future.

Ed
by Ed Svetich-WI
Fri Jul 03, 2020 12:35 pm
Forum: Purple Martin Forum
Topic: Bad eggs?
Replies: 9
Views: 2389

Re: Bad eggs?

Strange outcome. With about 23 pair of martins, even if they averaged 4 eggs a pair, you should expect about 100 eggs. 9 eggs in one nest could include sterile eggs or be a case of egg dumping. Watch when hatching is expected to see how many hatch. In had a clutch of 10 eggs this year and they all h...
by Ed Svetich-WI
Fri Jul 03, 2020 8:22 am
Forum: Purple Martin Forum
Topic: Bad eggs?
Replies: 9
Views: 2389

Re: Bad eggs?

Early sudies by the PMCA showed a significant advantage to providing calcium, specifically oyster shells as a supplement, in that it increased egg production and chick survival. Many just use crushed egg shells. If you are not providing a source of calcium, I suggest doing so. I supply crushed oyste...
by Ed Svetich-WI
Wed Jul 01, 2020 9:47 am
Forum: Purple Martin Forum
Topic: Has this baby been wounded? UPDATE 7-1-20
Replies: 13
Views: 2765

Re: Has this baby been wounded?

It looks like a wound. With the dry green leaves in the nest, it looks like the nest has not been replaced. Bird blow fly larvae may be present and have fed on the nestling causing a raw area. I suggest nest replacement to be sure none are present. I might also use a little bit of antibiotic salve b...
by Ed Svetich-WI
Tue Jun 30, 2020 7:54 pm
Forum: Purple Martin Forum
Topic: Nest Changes ?? Or Not ??
Replies: 4
Views: 1338

Re: Nest Changes ?? Or Not ??

Bill, If you are doing regular nest checks and have found no vermin and the nests are in good shape, you are in good shape to allow the nests to go as they are. I would still conduct nest checks in case any issues such as mites or buffalo gnats show up but you sound like your colony is in good shape...
by Ed Svetich-WI
Tue Jun 30, 2020 2:34 pm
Forum: Purple Martin Forum
Topic: Four babies, one egg
Replies: 1
Views: 699

Re: Four babies, one egg

Congratulations. Keep a close watch on your four founding nestlings. There is a 7 day period between finding the first nestling and the 3 additional. That is too long a time to not check on them. There is no reason to not be checking every couple of days, especially since a successful nest will dete...
by Ed Svetich-WI
Tue Jun 30, 2020 10:36 am
Forum: Purple Martin Forum
Topic: 2 eggs not hatching. What do I do?
Replies: 3
Views: 919

Re: 2 eggs not hatching. What do I do?

I begin nest regular nest replacements on day 7, again at 14 days and finally at age 20 days. But I am down to only twelve pair in twelve gourds.I have changed wet nests as early as day 2 or 3. I suggest at least two nest replacements to keep vermin controlled and wish everyone would consider it. So...
by Ed Svetich-WI
Tue Jun 30, 2020 9:27 am
Forum: Purple Martin Forum
Topic: 2 eggs not hatching. What do I do?
Replies: 3
Views: 919

Re: 2 eggs not hatching. What do I do?

Chances are they are sterile. This is not that unusual with an SY pair and will even occur with ASY pair.You don't have to do anything with the unhatched eggs. Just let them be. On your next nest replacement, you can remove them with the soiled nest materials.

Ed
by Ed Svetich-WI
Sun Jun 28, 2020 7:55 pm
Forum: Purple Martin Forum
Topic: Late hatchling?
Replies: 8
Views: 1472

Re: Late hatchling?

John, I encourage you to see if another martin landlord in your area would demonstrate nest checks for you. It really is a great way to gain a better appreciation for the remarkable changes that the nestlings make as they grow from hatch day to fully feathered. It is also a good way to correct any i...
by Ed Svetich-WI
Sun Jun 28, 2020 4:49 pm
Forum: Purple Martin Forum
Topic: Late hatchling?
Replies: 8
Views: 1472

Re: Late hatchling?

Lower the gourds. If the nestling is uninjured, it may be a late nest by SY birds or a second nesting. Have you not lowered the gourds to check on the birds in all those years? You have missed a lot. I am on my second nest replacement of three onneach nest and the birds are not in the least bit inti...
by Ed Svetich-WI
Sun Jun 28, 2020 2:21 pm
Forum: Purple Martin Forum
Topic: Late hatchling?
Replies: 8
Views: 1472

Re: Late hatchling?

Curious as to why a video camera on a pole? Can you lower your gourds?If you can't, there is not much you can do to improve your situation.

Ed
by Ed Svetich-WI
Fri Jun 26, 2020 1:44 pm
Forum: Purple Martin Forum
Topic: Should I remove an egg?
Replies: 3
Views: 1025

Re: Should I remove an egg?

I leave any unhatched eggs in the nest until the first nest replacement. I have never had one break or cause any issues.

Ed
by Ed Svetich-WI
Mon Jun 22, 2020 6:24 pm
Forum: Purple Martin Forum
Topic: I'm going to need bigger gourds- 10 nestlings in one.
Replies: 6
Views: 2604

Re: I'm going to need bigger gourds- 10 nestlings in one.

Good question. All the eggs were in the same gourd. You can see as the number increased over time. One lone ASY female was brooding all the eggs. All of the eggs hatched and were healthy. I eventually removed 4 nestlings and distributed them based on their size to four other gourds. As of about noon...
by Ed Svetich-WI
Sat Jun 20, 2020 2:02 pm
Forum: Purple Martin Forum
Topic: 9 eggs!!??
Replies: 3
Views: 1001

Re: 9 eggs!!??

Two posibilities immediately come to mind. The most likely is egg dumping by other females. There may be a number of sterile eggs in the clutch. Although unlikely, this lone female could be responsible. Watch closely to see how many actually hatch. Nature is interesting.Produce as many martins as po...