>> our inspiration is a great blue heron. it was the site itself that attracted us. this is an incredibly beautiful outdoor room. we did a bit of reverse engineering once we knew we wanted to work here. which animals live here? the great blue heron jumped out at us. we walked around, and quickly, you get into another pace. you slow down, leave the city behind you. you can feel the wind and the breeze. in our increasingly frenetic, fast-paced, connected life, the chance to be of here and slow down a bit was part of the agenda. as part of the installation, it was suggested that this would be deliberately not mowed because it would allow the sustaining of insects, plants, that would graduate -- that would gravitate to the area. >> that is right. i think you quickly notice that. >> thank you for being here. presidio habitat is an exhibition at the presidio trust. it will be in san francisco through may 2011. we hope you will come out to experience this amazing exhibition and great natural treasure. >> to learn more about the other habitats installations in the presidio,

. >> i lost fish to herons and things like that and crows over the winter. >> it is quite a sight. >> they are beautiful, graceful birds. >> now, palm trees in the depth of winter, january, february, you don't want ice to completely cover the pond. the fish are in a dormant stage. they still have to breathe. >> and they do produce gases. we have a couple different sizes. you would need a big deicer. >> most of these will -- they bump into the side walls they won't hurt anything. >> what about between now and when it freezes over and the fish go to sleep for the winter. do you have to feed them? >> there are transitional foods out there for spring and autumn. watch carefully. you will notice these -- you know when we were here a couple months ago, they were here waiting. >> and this particular food won't follow the water as much because it has different components than the summer. >> i have a handy-dandy cheat sheet. >> they can stop by and have these available. >> tips for your pond or in my case, bathtub. if it is only just a bird bath, don't let that freeze over. >> there are birth

parking lot, in front of the hyattsville store were struck by a car. 41-year-old freddie castillos herony the 17-year-old driver had a medical emergency and blacked out. his name is not being released because he is not charged. >> we'll be right back. [ girl ] to protect against dental problems, my dentist said use act. [ male announcer ] act mouthwash restores enamel and makes teeth up to 2 times stronger. act. stronger teeth and fresher breath in every bottle. >>> for three days after thanksgiving, the maryland state fairgrounds storms into a winter wonderland. the kennedy krieger festival of trees opens its doors this morning. and wjz is proud to be a sponsor again. andrea fujii explains, there are some new attractions. >> reporter: with 600 decorated trees, wreaths and gingerbread houses, the holiday spirit abounds. >> i think they get better every year. they really do. >> reporter: and it's all for sale, with the money raised, supporting the kennedy krieger institute, including kennedy krieger high school. they teach about 200 high schoolers with a range of disabilities, from studen

analyst vernon heron works for the center for homeland and security. >> these officers train year round. they're tactical officers and they train for situations just like this. these are very unpredictable. you're dealing with people with a propensity for violence. and they're not going to give up easily. >> reporter: and that unpredictability, gave people not only a scare, but feds a look at crime-fighting units. >> i've never seen anybody respond so quickly. this is the closest i've ever seen that that -- to that. >> reporter: the atf decrine -- declined to speak of it on camera. no one else, we're told, was injured in any of this. reporting live in south baltimore, i'm mike hellgren. wjz eyewitness news. >> thank you, mike. members of the baltimore city police department also assisted in the raid. >>> a man admits burning down his boss's tires at a tire store. but he's only serving two months in prison. and he might even get his job back. >> you may recall the massive entire at belvedere tires. the flames could be seen for miles. today, a former employee, 35- year-old jason hicks, pl

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