Peregrine Falcon Watch
Spring 2003

Observation Log 8

All pictures are from the APK falconcam

                      FEEDING SCHEDULE                                       EYASES LEFT UNATTENDED
DATE / WHO TIME DURATION   DATE / TIME TEMPERATURE DURATION
4/28 / SW
SW
SW
SW
11:13-11:23 AM
1:45-1:50 PM
4:36-5:05 PM
6:57-7:03 PM
10 min.
5 min.
29 min.
6 min.
  4/28 10-11 AM
1-2 PM
2-3 PM
3-4 PM
4-5 PM
5-6 PM
6-7 PM
68 - 71 F
64 - 64.9 F
64.9 F
64.9 F
64.9 - 69.1 F
69.1 - 66.9 F
66.9 - 64 F
11 min.
5 min.
5 min.
18 min.
5 min.
5 min.
4 min.
4/29 / SW
SW
SW

SW
SW
SW
6:17-6:23 AM
8:52-9:03 AM
10:29-10:34 AM

3:27-3:37 PM
5:41-5:54 PM
8:15-8:26 PM
6 min.
11 min.
5 min.

10 min.
13 min.
11 min.
  4/29 7-8 AM
9-10 AM
10-11 AM
11-12 Noon
3-4 PM
5-6 PM
8-9 PM
45 - 46 F
46 - 48 F
48 - 46.9 F
46.9 F
48.9 F
51.1 F
48.9 - 48 F
1 min.
1 min.
1 min.
6 min.
3 min.
2 min.
3 min.
4/30 / SW
SW
SW
SW
SW
7:14-7:22 AM
10:19-10:31AM
3:34-3:52 PM
4:39-4:46 PM
7:15-7:24 PM
8 min.
13 min.
14 min.
8 min.
9 min.
  4/30  7-8 AM
9-10 AM
10-11 AM
1-2 PM
3-4 PM
4-5 PM
6-7 PM
7-8 PM
51 - 55 F
57 - 57.9 F
57.9 - 62.1 F
68 - 72 F
53 - 48.9 F
48.9 - 60.1 F
64.9 - 57 F
3 min.
3 min.
5 min.
25 min.
7 min.
7 min.
3 min.
10 min.
5/1 / SW
SW
SW
SW
6:53-6:57 AM
9:09-9:21 AM
12:14-12:29 PM
5:17-5:30 PM
5 min.
12 min.
15 min.
13 min.
  5/1  6-7 AM
8-9 AM
10-11 AM
11-12 Noon
12-1 PM
1-2 PM
5-6 PM
68 - 69.1 F
70 - 72 F
63 - 73.9 F
73.9 - 75 F
75 - 64.9 F
64.9 - 59 F
66.9 - 55 F
45 min.!
28 min.
6 min.
10 min.
21 min.
54 min.!
19 min.
5/2 / SW
SW
SW
SW
7:27-7:37 AM
1:37-1:48 PM
4:27-4:33 PM
6:57-7:00 PM
10 min.
11 min.
7 min.
4 min.
  5/2  7-8 AM
12-1 PM
1-2 PM
3-4 PM
4-5 PM
48 F
50 F
50 F
51 F
51 - 48 F
1 min.
2 min.
8 min.
2 min.
2 min.

Conclusions:  In the first week, the babies were fed at least 4 times a day ~the length of time they feed varies.  It looks like it is an "on demand" schedule.  They are left alone in the nest only long enough for SW to pick up the food.  SW does all the feeding.  Occasionally Buckeye comes in to the nest box to stand over the eyases while Mom is off.  The warmer the air temperature, the longer they are left alone.

 

5/3  Overnight temperatures in the mid 40s ... barely reaching 50 F today.  It was a typical day on the nest ~ SW with the babies majority of the time, leaving only to retrieve food Buckeye has provided.  Today they took from 5 minutes to 24 minutes to eat, 7 times today.  There seemed to be a longer feeding later in the day (between 8 - 9 PM) ~ maybe to hold them through the night. The babies are alert and growing.  You can almost see their personalities beginning to develop by the expressions on their little faces.  The 4th egg is still present in the nest and being incubated ~ SW hasn't pushed it aside yet.  We wonder when they are going to start moving around in the nest box?


SW coming in for a landing.

The Tent

"Pretty bird ..."

The eyases are never really alone.
5/4  Overnight temperatures in the 40s ... continued in to the daylight hours with a high of only 54 F in the early evening.  With the temperatures like these SW has been keeping the babies under her wings most of the time, and she is still incubating the 4th egg. There were 3 times today they were not being protected by Mom for a long time ~ The entire hour from 8:57 AM - 9:57 Am; from 11:50 - 12:56 PM; and from 7:04 - 7:39 PM. The babies ate 5 times today, which took anywhere from 6 to 15 minutes.

8:20  5/4  Breakfast

"Alright you 3, listen up, Mother's Day is one week from today and ..."

5/5  Temperatures through the night were a bit warmer ~ in the 60s.  The rain in the early morning stopped around 10:00 and the day must have gotten better as the temperatures reached a high of 75 F by the early evening.  SW kept the babies covered through the morning rains and they had a quick brunch about 9:30 AM.  Later in the day the feedings lasted longer.  As the weather got nicer, the babies were left alone for long periods of time ~ 1:44  - 3:01 PM; 4:20 - 5:08 PM; 5:10 - 6:29 PM; and 7:57 - 8:04 PM; then again 8:15 until the cameras went dark ... but they were not really "alone" ... SW was standing off to the edge of the nest box in many wide angle shots ... this is when the temperatures were 64 F to 75 F ~ SW was probably hot with all that body heat under her.  [See the Baby Album ?]


"See how much we've grown!"

A little while later ... "Why are you way over there?"

5:26 PM  "Hey Dad, what did you bring us?"

5:27 PM  "He's got nothin' ..."
5/6  Temperatures overnight were in the 60s with thunder and heavy rain.  When the cameras came up this morning the nest box looked pretty wet, and messy!  There are feathers everywhere ~ probably from a combination of SW preening, but mostly debris from all the "meals".  It was slim pickins' this morning for food ~ the babies didn't eat until 11:11 AM.  One thing we noticed today was the babies were uncovered for longer periods of time than they have been; 51 minutes,44 min.;90 min.;57 min.;2 hours; 46 min.; and several shorter periods of time too, and the temperatures were not that warm ... high 50s and low 60s today.
5/7  Temperatures overnight in 50s and 60s.  Today it barely got out of the 40s and was rainy most of the early part of the day.  Two significant observations we noticed today ~ SW in no longer incubating that 4th egg ~ it is slightly away from the others now and never under her when she is brooding.  The second point ~ now that the babies are getting so big SW is not brooding nearly as much as she was in the first week after hatching.  In fact, the babies are "uncovered" most of the day ... she or Buckeye are however, close by, either sitting on top of the camera / speaker bracket above the nest, or sitting on the ledge to the front of the nest box.

Notice the egg pushed aside ... coverage is getting harder with the eyases getting so big.

"Pizza" Delivery

5/8  Temperatures all day today were the same as overnight ~ low 50s ~ there has been light rain and mist for 22 hours ... The babies continue to have good appetites and are eating well.  SW is now leaving them for lengthy periods of time, but is always back to feed them.  They are beginning to find their legs and creeping around the nest box has started ... sort of like a human baby beginning to crawl.  The eyases will be 2 weeks old tomorrow and Sat.


"So, Mom ... Am I big enough to explore that ledge yet?"

Buckeye giving them room, but guarding the boundaries.

"I told you that ledge can be a scary place."

Enough for one day!

5/9  It continued to rain through the night and until 9:00 AM with temperatures in the 50s.    It finally reached 68 F by mid afternoon.  The temperatures have been almost in the same range for the first 2 weeks of the babies' lives.  They are still demanding to be fed every couple of hours and SW is continuing to make sure they don't go hungry.  The eyases are also being given plenty of room and time to move around the nest box, although they haven't ventured too far.  They seem to want to fly before they walk ...


"3, 2, 1, ... contact!"

A crash landing, or testing for drafts?

PAGE 9 >>

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  2003 by Lynne Harvey
Rolling Hills Elementary
Poway Unified School District
San Diego, CA.

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