Friday, December 2, 2011

The Mother Lode

This morning an ibis apparently hit the bug jackpot in neighbor Mike's backyard. It began dipping and pecking at his lawn in a frenzy, swallowing and dipping again and again. The ibis have been flocking together recently and it wasn't long before this one was joined by another and then another and then three more followed by five additional as the number of diners increased geometrically to around forty or so. They formed feeding rows ten or twelve abreast and worked one side to the other breaking only to move around the orange trees. The feeding was so good, when something startled them they flew only as far as the nearest trees and power lines, waited the minimum time to recognize the false alarm and returned to pick up right where they'd left off.

When ibis fly into trees they, of necessity go to the top branches since they are too tall to comfortably fit where another branch is above them. The exceptions are palm trees where they will fly directly to the vertical bole and cling tenuously for a few moments before their own weight, levered out almost horizontally at the end of their long legs, causes them to lose their grip.

Those long legs also give them a difficult time with power lines. All birds sway a little on the line since the wires are very thin and free to move but the arc of a balancing ibis can be as much as 30 degrees forward or back. A row of ibis, shoulder to shoulder, on a house feeder wire will cause it to sag noticeably. One bird will lean forward, catch its balance and lean back (often overcorrecting). This causes its neighbors on either side to compensate by leaning forward and then back themselves which requires the next ones in line to do the same and so on. If they get the timing right they can create a kind of sine wave and for a few seconds it is possible to watch the wave crests roll down the line and back. Usually, though, and inevitably, it gets chaotic pretty quick and the whole thing explodes off the wire in a flurry of white wings, skinny legs and long bills.

After the second false alarm, the original crew was joined by another twenty or so putting the total at the feeding frenzy over sixty. Then they all took off at once and kept going.

Followed by another neighbor's just-out-of-puppyhood black lab with a look of sheerest joy on its face chasing after them across neighbor Mike's yard and ours.

Followed by the neighbor's teenage son.

There is a large, low white cloud circling the neighborhood. Maybe they'll return for dessert.

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