We had an early briefing with our new Deputy Director and we had the TV in the conference room on the live feed. The eagle pair showed up 10 minutes into the briefing and stayed the whole time, distracting all of us for the remainder of the meeting.
Big doings here this morning. I drove in to see our eagle pair perched above the nest.
Steve Wunderley caught me as I came in and said that he observed the pair mating ealier this AM. Steve says that that is a very good sign for another clutch. No guarantees, but steve said it is promising.
Steve also said that this is a very unusual pair of eagles, and we should expect the unexpected.
If there was some success, we should see an eggs or eggs in about a week.
Here is an excerpt from the NU Webcam (now called FirstLight) on egg viability that may be relevant to our nest this year, keeping in mind that they are talking about a Massachusetts nest:
"During incubation, the adults must keep the eggs warm and dry as exposure to rain and snow can chill and kill the developing embryos. Late snowstorms have resulted in the failure of many Massachusetts eagle nesting attempts, most notably the April Fools blizzard of 1997 which dumped up to 20 inches of heavy wet snow across the western half of the state. That year, four pairs of eagles nesting along the Connecticut River, including the pair under Eagle Cam, all failed to produce chicks. The snow that built up on the nests melted and collapsed around the eggs and the adults were unable to keep the egg cup warm and dry."
Hopefully our eggs here have not been impacted in a similar way.
The have been questions about egg viability/hatching times that Steve W. and I will try to address for you.
Normal incubation period is about 35 days, although a few sources say longer, up to 45. We think that the cold weather during incubation can have an effect on the eggs that could add several days onto the normal incubation period. This could explain why we don't have another hatch yet. We have likely exceeded the time period that we saw a hatch last year.
With that in mind, the days are ticking off, and we think if we do not see a hatch by the end of the weekend, we may be facing egg viability problems.
Bent says this:
"...He gives the period of incubation as 34 to 35 days under normal conditions, though interrupted incubation may require a somewhat longer time. "
New thread. Here is a reprint from the comments the other day. John estimates the battery is up near 12 volts, and it needs to be 12.6. He'll head out after 12:00 to check the system at the tree.
Good Morning Eagle watchers. I feel your frustration with the NCTC Eaglecam this year. We also are unable to see the cam on campus. It seems the battery keeps losing it's charge. To give you a heads up, Mike & I (John) have worked on this project from the beginning. Last month during 20 degree weather, and high winds we replaced a failed microwave transmitter 100 yards from the tree onto the side of the barn. So cold we couldn't feel our finger tips. Steve purchased a new battery, which was replaced early in the season. He also purchased a new solar controller, which we replaced. We also verified the voltage on all 3 solar panels. The solar controller will cut off the load (camera & microwave feed) when the voltage drops below 11.4V, then will reconnect the load when the…